Spring\u5bb9\u5668：ApplicationContext<\/p>\n
SpringWeb\u5bb9\u5668：WebApplicationContext<\/p>\n
\u7ec4\u4ef6\u626b\u63cf<\/h5>\nspringmvc.xml\u6587\u4ef6<\/h5>\n
<?xml version="1.0" encoding="utf-8" ?><\/p>\n
<beans>
\n <!–
\n \u62e6\u622a\u5668
\n \u89c6\u56fe\u89e3\u6790\u5668
\n \u7ec4\u4ef6\u626b\u63cf
\n –><\/p>\n
<component-scan base-package="org.springmvc.oa.controller"\/>
\n<!– \u89c6\u56fe\u89e3\u6790\u5668–>
\n <bean class="org.springmvc.web.servlet.view.InternalResourceViewResolver">
\n<!– \u524d\u7f00–>
\n <property name="prefix">
\n <value>\/WEB-INF\/jsp\/<\/value>
\n <\/property>
\n<!– \u540e\u7f00–>
\n <property name="suffix">
\n <value>.jsp<\/value>
\n <\/property>
\n <\/bean><\/p>\n
<!– \u62e6\u622a\u5668–>
\n <interceptors>
\n <bean class="org.springmvc.oa.interceptors.Interceptor1"><\/bean>
\n <bean class="org.springmvc.oa.interceptors.Interceptor2"><\/bean>
\n <\/interceptors>
\n<\/beans> <\/p>\n
\u6dfb\u52a0\u89e3\u6790XML\u6587\u4ef6\u7684\u4f9d\u8d56<\/p>\n
<!–dom4j–>
\n<dependency>
\n <groupId>dom4j<\/groupId>
\n <artifactId>dom4j<\/artifactId>
\n <version>1.6.1<\/version>
\n<\/dependency>
\n<!–jaxen–>
\n<dependency>
\n <groupId>jaxen<\/groupId>
\n <artifactId>jaxen<\/artifactId>
\n <version>1.1.6<\/version>
\n<\/dependency> <\/p>\n
\u00a0ApplicationContext<\/h6>\n
public class ApplicationContext {
\n private Map<String, Object> beanMap = new HashMap<>();<\/p>\n
public ApplicationContext(String xmlPath) throws Exception {
\n \/\/ \u7ec4\u4ef6\u626b\u63cf
\n SAXReader saxReader = new SAXReader();
\n Document document = saxReader.read(new File(xmlPath));
\n Element componentScanElement = (Element)document.selectSingleNode("\/beans\/context:component-scan");
\n String basePackage = componentScanElement.attributeValue("base-package");
\n System.out.println("\u7ec4\u4ef6\u626b\u63cf：" + basePackage);
\n componentScan(basePackage);
\n System.out.println("Spring Web\u5bb9\u5668\u5f53\u4e0b\u72b6\u6001：" + beanMap);
\n }<\/p>\n
private void componentScan(String basePackage) throws Exception{
\n String dirPath = Thread.currentThread().getContextClassLoader().getResource(basePackage.replace(".", "\/")).getPath();
\n File file = new File(URLDecoder.decode(dirPath));
\n if(file.isDirectory()){
\n File[] files = file.listFiles();
\n for (File classFile : files){
\n if(classFile.getName().endsWith(".class")){
\n String className = basePackage + "." + classFile.getName().substring(0, classFile.getName().lastIndexOf("."));
\n Class<?> clazz = Class.forName(className);
\n Constructor<?> defaultCon = clazz.getDeclaredConstructor();
\n Object bean = defaultCon.newInstance();
\n beanMap.put(firstCharLowerCase(clazz.getSimpleName()), bean);
\n }
\n }
\n }
\n }<\/p>\n
private String firstCharLowerCase(String simpleName) {
\n return simpleName.substring(0, 1).toLowerCase() + simpleName.substring(1);
\n }<\/p>\n
public Object getBean(String beanName){
\n return beanMap.get(beanName);
\n }
\n}<\/p>\n
\u00a0\u7ec4\u4ef6\u626b\u63cf\u7684beanMap\u7ed3\u679c![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250429023759-68103b87475f6.png\")
<\/p>\n
WebApplicationContext<\/h6>\n
package org.springmvc.web.context;<\/p>\n
import jakarta.servlet.ServletContext;
\nimport org.dom4j.DocumentException;
\nimport org.springmvc.context.ApplicationContext;<\/p>\n
import java.lang.reflect.InvocationTargetException;<\/p>\n
public class WebApplicationContext extends ApplicationContext {
\n private ServletContext servletContext;
\n private String springMvcConfigPath;<\/p>\n
public WebApplicationContext() {
\n }<\/p>\n
public WebApplicationContext(ServletContext servletContext, String springMvcConfigPath) throws DocumentException, ClassNotFoundException, InvocationTargetException, NoSuchMethodException, InstantiationException, IllegalAccessException {
\n super(springMvcConfigPath);
\n this.servletContext = servletContext;
\n this.springMvcConfigPath = springMvcConfigPath;
\n }<\/p>\n
\/**
\n * \u83b7\u53d6
\n * @return servletContext
\n *\/
\n public ServletContext getServletContext() {
\n return servletContext;
\n }<\/p>\n
\/**
\n * \u8bbe\u7f6e
\n * @param servletContext
\n *\/
\n public void setServletContext(ServletContext servletContext) {
\n this.servletContext = servletContext;
\n }<\/p>\n
\/**
\n * \u83b7\u53d6
\n * @return springMvcConfigPath
\n *\/
\n public String getSpringMvcConfigPath() {
\n return springMvcConfigPath;
\n }<\/p>\n
\/**
\n * \u8bbe\u7f6e
\n * @param springMvcConfigPath
\n *\/
\n public void setSpringMvcConfigPath(String springMvcConfigPath) {
\n this.springMvcConfigPath = springMvcConfigPath;
\n }<\/p>\n
public String toString() {
\n return "WebApplicationContext{servletContext = " + servletContext + ", springMvcConfigPath = " + springMvcConfigPath + "}";
\n }
\n}<\/p>\n
\u521b\u5efa\u89c6\u56fe\u89e3\u6790\u5668\u5bf9\u8c61\u00a0<\/h5>\nInternalResourceViewResolver<\/h6>\n
\u5185\u90e8\u8d44\u6e90\u89c6\u56fe\u89e3\u6790\u5668<\/p>\n
package org.springmvc.web.servlet.view;<\/p>\n
import org.springmvc.web.servlet.View;
\nimport org.springmvc.web.servlet.ViewResolver;<\/p>\n
import java.util.Locale;<\/p>\n
\/*
\n \u5185\u90e8\u8d44\u6e90\u89e3\u6790\u5668
\n *\/
\npublic class InternalResourceViewResolver implements ViewResolver {
\n String prefix;
\n String suffix;<\/p>\n
public InternalResourceViewResolver() {
\n }<\/p>\n
public InternalResourceViewResolver(String prefix, String suffix) {
\n this.prefix = prefix;
\n this.suffix = suffix;
\n }
\n \/*
\n \u5c06\u903b\u8f91\u8bd5\u56fe\u540d\u5b57 \u8f6c\u6362\u4e3a\u7269\u7406\u89c6\u56fe\u540d\u79f0 \u5e76\u4ee5View\u5bf9\u8c61\u8fd4\u56de
\n *\/
\n @Override
\n public View resolveViewName(String viewName, Locale locale) throws Exception {<\/p>\n
return new InternalResourceView("text\/html;charset-UTF-8", prefix+viewName+suffix);
\n }<\/p>\n
\/**
\n * \u83b7\u53d6
\n * @return prefix
\n *\/
\n public String getPrefix() {
\n return prefix;
\n }<\/p>\n
\/**
\n * \u8bbe\u7f6e
\n * @param prefix
\n *\/
\n public void setPrefix(String prefix) {
\n this.prefix = prefix;
\n }<\/p>\n
\/**
\n * \u83b7\u53d6
\n * @return suffix
\n *\/
\n public String getSuffix() {
\n return suffix;
\n }<\/p>\n
\/**
\n * \u8bbe\u7f6e
\n * @param suffix
\n *\/
\n public void setSuffix(String suffix) {
\n this.suffix = suffix;
\n }<\/p>\n
public String toString() {
\n return "InternalResourceViewResolver{prefix = " + prefix + ", suffix = " + suffix + "}";
\n }<\/p>\n
\/**
\n * \u83b7\u53d6
\n * @return suffix
\n *\/<\/p>\n
\/**
\n * \u83b7\u53d6
\n * @return prefix
\n *\/<\/p>\n
}<\/p>\n
\u00a0\u521b\u5efa\u89c6\u56fe\u89e3\u6790\u5668\u5bf9\u8c61<\/p>\n
private void createViewResolver(Element viewResolverElement) throws ClassNotFoundException, InstantiationException, IllegalAccessException, NoSuchMethodException, InvocationTargetException {
\n String viewResolverClassName=viewResolverElement.attributeValue("class");
\n System.out.println("\u89c6\u56fe\u89e3\u6790\u5668\u7c7b\u540d"+viewResolverClassName);
\n Class clazz= Class.forName(viewResolverClassName);
\n Object bean = clazz.newInstance();
\n \/\/bean\u8282\u70b9\u4e0b\u5b50\u8282\u70b9property
\n List<Element> propertyElements=viewResolverElement.elements(Constant.PROPERTY_TAG_NAME);
\n for(Element propertyElement:propertyElements){
\n \/\/\u83b7\u53d6\u5c5e\u6027\u540d
\n String fieldName=propertyElement.attributeValue(Constant.PROPERTY_NAME);
\n String value=propertyElement.element(Constant.PROPERTY_VALUE).getTextTrim();
\n \/\/\u5c06\u5c5e\u6027\u540d\u8f6c\u4e3aset\u65b9\u6cd5
\n String setMethodName=fieldNameToSetMethod(fieldName);<\/p>\n
\/\/\u901a\u8fc7\u53cd\u5c04\u673a\u5236\u8c03\u7528set\u65b9\u6cd5
\n Method setMethod = clazz.getDeclaredMethod(setMethodName,String.class);
\n setMethod.invoke(bean,value);
\n }
\n beanMap.put(Constant.VIEW_RESOLVER, bean);
\n } <\/p>\n
![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250429023759-68103b878bd88.png\")
\u00a0<\/p>\n
\u521b\u5efa\u62e6\u622a\u5668\u5bf9\u8c61<\/h5>\n
private void createInteceptor(Element interceptorElement) throws ClassNotFoundException, InstantiationException, IllegalAccessException {
\n List<Element> interceptorElements=interceptorElement.elements("bean");
\n List<HandlerInterceptor> interceptors=new ArrayList<>();
\n for(Element interceptor:interceptorElements){<\/p>\n
Class<?> clazz=Class.forName(interceptor.attributeValue("class"));
\n Object bean=clazz.newInstance();
\n interceptors.add((HandlerInterceptor)bean);
\n }
\n beanMap.put(Constant.INTERCEPROTS,interceptors);
\n } <\/p>\n
![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250429023759-68103b87d8660.png\")
\u00a0<\/p>\n
2.\u521d\u59cb\u5316HandlerMapping\u548c\u521d\u59cb\u5316HandlerAdapter\u00a0<\/h4>\n
\u521d\u59cb\u5316annotation\u5305\u4e0b\u6240\u6709\u7c7b\u7684\u5b9e\u4f8b<\/p>\n
private void createHandlerMapping(String defaultPackage,Map<RequestMappingInfo, HandlerMethod>map) throws ClassNotFoundException, NoSuchMethodException, InvocationTargetException, InstantiationException, IllegalAccessException {
\n \/\/System.out.println(defaultPackage);
\n \/\/ \u5c06\u8fd9\u4e2a\u5305\u4e0b\u6240\u6709\u7684\u7c7b\u5b9e\u4f8b\u5316：org.myspringmvc.web.servlet.mvc.method.annotation<\/p>\n
\/\/\u83b7\u53d6\u7edd\u5bf9\u8def\u5f84
\n String dirPath=Thread.currentThread().getContextClassLoader().getResource(defaultPackage.replace('.', '\/')).getPath();
\n File file=new File(URLDecoder.decode(dirPath));
\n \/\/\u83b7\u53d6\u91cc\u9762\u6240\u6709\u7684\u5b50\u6587\u4ef6
\n if(file.isDirectory()){
\n File[] files = file.listFiles();
\n for(File classFile : files){
\n if(classFile.getName().endsWith(Constant.SUFFER_CLASS)){
\n \/\/\u5168\u7c7b\u540d
\n String className=defaultPackage+"."+classFile.getName().substring(0,classFile.getName().lastIndexOf("."));
\n Class<?>clazz=Class.forName(className);
\n if(HandlerMapping.class.isAssignableFrom(clazz)){
\n Constructor<?>defaultCon= clazz.getDeclaredConstructor(Map.class);
\n Object bean=defaultCon.newInstance(map);
\n beanMap.put(Constant.HANDLER_MAPPING, bean);
\n }
\n if(HandlerAdapter.class.isAssignableFrom(clazz)){
\n Constructor<?>defaultCon= clazz.getDeclaredConstructor();
\n Object bean=defaultCon.newInstance();
\n beanMap.put(Constant.HANDLER_ADAPTER, bean);
\n }
\n }
\n }
\n }
\n } <\/p>\n
\u00a0![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250429023800-68103b8849d3a.png\")
<\/p>\n<\/p>\n
2.\u521d\u59cb\u5316Servlet\u5bf9\u8c61<\/h3>\nDispatchServlet init()<\/h4>\n
public void init(){
\n \/\/\u627e\u5230springmvc.xml\u6587\u4ef6
\n \/*
\n <init-param>
\n <param-name>contextConfigLocation<\/param-name>
\n <param-value>classpath:springmvc.xml<\/param-value>
\n <\/init-param>
\n *\/
\n \/\/\u6839\u636e\u4ee5\u4e0a\u914d\u7f6espringmvc.xml\u6587\u4ef6
\n \/\/\u83b7\u53d6SpringConfig\u5bf9\u8c61(Servlet\u914d\u7f6e\u4fe1\u606f\u5bf9\u8c61 \u8be5\u5bf9\u8c61\u7531web\u5bb9\u5668\u81ea\u52a8\u521b\u5efa \u5e76\u4e14\u5c06\u5176\u4f20\u9012\u7ed9init\u65b9\u6cd5
\n \/\/ )
\n ServletConfig servletConfig = this.getServletConfig();
\n String contextConfigLocation = servletConfig.getInitParameter(Constant.CONTEXT_CONFIG_LOCATION);
\n String springMvcXmlPath=getSpringMvcXmlPath(contextConfigLocation);
\n System.out.println("Spring MVC\u914d\u7f6e\u6587\u4ef6\u8def\u5f84\u89e3\u6790\u5b8c\u6210：" + springMvcXmlPath);<\/p>\n
\/\/\u521d\u59cb\u5316Spring Web\u5bb9\u5668
\n WebApplicationContext webApplicationContext = null;
\n try {
\n webApplicationContext = new WebApplicationContext(this.getServletContext(), springMvcXmlPath);
\n } catch (DocumentException e) {
\n throw new RuntimeException(e);
\n } catch (ClassNotFoundException e) {
\n throw new RuntimeException(e);
\n } catch (InvocationTargetException e) {
\n throw new RuntimeException(e);
\n } catch (NoSuchMethodException e) {
\n throw new RuntimeException(e);
\n } catch (InstantiationException e) {
\n throw new RuntimeException(e);
\n } catch (IllegalAccessException e) {
\n throw new RuntimeException(e);
\n }
\n this.getServletContext().setAttribute(Constant.WEB_APPLICATION_CONTEXT, webApplicationContext);<\/p>\n
\/\/\u521d\u59cb\u5316HandlerMapping
\n this.handlerMapping=(HandlerMapping)webApplicationContext.getBean(Constant.HANDLER_MAPPING);
\n \/\/\u521d\u59cb\u5316HandlerAdapter
\n this.handlerAdapter=(HandlerAdapter)webApplicationContext.getBean(Constant.HANDLER_ADAPTER);
\n \/\/\u521d\u59cb\u5316\u8bd5\u56fe\u89e3\u6790\u5668
\n this.viewResolver=(ViewResolver)webApplicationContext.getBean(Constant.VIEW_RESOLVER);<\/p>\n
}<\/p>\n
private String getSpringMvcXmlPath(String contextConfigLocation) {
\n if(contextConfigLocation.startsWith(Constant.CLASSPATH)){
\n String path=contextConfigLocation.substring(Constant.CLASSPATH.length()).trim();
\n \/\/\u7c7b\u8def\u5f84\u4e2d\u627e
\n String springMvcXmlPath=Thread.currentThread().getContextClassLoader().getResource(path).getPath();
\n \/\/ \u5bf9\u8def\u5f84\u89e3\u7801，\u9632\u6b62\u8def\u5f84\u4e2d\u6709 % \u7b49\u5b57\u7b26\u3002
\n return URLDecoder.decode(springMvcXmlPath, Charset.defaultCharset());<\/p>\n
}
\n return null;
\n } <\/p>\n
doDispath\u65b9\u6cd5<\/h4>\n
protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
\n try {
\n doDispatch(req, resp);
\n } catch (Exception e) {
\n throw new RuntimeException(e);
\n }
\n }
\n \/**
\n * \u5904\u7406\u8bf7\u6c42\u7684\u6838\u5fc3\u65b9\u6cd5
\n * @param request
\n * @param response
\n * @throws ServletException
\n * @throws IOException
\n *\/
\n private void doDispatch(HttpServletRequest request, HttpServletResponse response) throws Exception {
\n \/\/\u8bbf\u95ee\u6d4f\u89c8\u5668\u624d\u80fd\u65ad\u70b9\u5230\u8fd9
\n \/\/\u8bf7\u6c42\u5bf9\u8c61\u83b7\u53d6\u5bf9\u5e94\u7684\u5904\u7406\u5668\u6267\u884c\u8fde\u5bf9\u8c61
\n HandlerExecutionChain mappedHandler=handlerMapping.getHandler(request);
\n \/\/\u83b7\u53d6\u5904\u7406\u5668\u9002\u914d\u5668\u5bf9\u8c61
\n HandlerAdapter adapter = this.handlerAdapter;<\/p>\n
\/\/3.\u6267\u884c\u62e6\u622a\u5668\u4e2d\u7684preHandle\u65b9\u6cd5
\n if(!mappedHandler.applyPreHandle(request,response)){
\n return;\/\/false\u7684\u8bdd
\n }
\n \/\/4.\u6267\u884c\u5904\u7406\u5668\u65b9\u6cd5 \u8fd4\u56deModelAndView
\n ModelAndView mv=adapter.handle(request,response,mappedHandler.getHandler());
\n System.out.println("\u5904\u7406\u5668\u6267\u884c\u8fde\u5bf9\u8c61："+mappedHandler);<\/p>\n
\/\/5.\u6267\u884c\u62e6\u622a\u5668\u4e2dpostHanlder
\n mappedHandler.applyPostHandle(request,response,mv);<\/p>\n
\/\/6.\u8bd5\u56fe\u89e3\u6790\u5668 \u903b\u8f91\u8bd5\u56fe\u540d\u79f0\u8f6c\u4e3a\u7269\u7406\u89c6\u56fe\u540d\u79f0
\n View view=viewResolver.resolveViewName(mv.getView().toString(),request.getLocale());
\n view.render(mv.getModel(),request,response);<\/p>\n
\/\/\u6267\u884c\u62e6\u622a\u5668\u6e32\u67d3\u4e4b\u540e\u7684afterCompletetion\u65b9\u6cd5<\/p>\n
mappedHandler.triggerAfterCompletion(request,response,null);
\n } <\/p>\n
\u6839\u636e\u8bf7\u6c42\u83b7\u53d6\u5904\u7406\u5668\u6267\u884c\u94fe<\/h5>\n
HandlerExecutionChain mappedHandler=handlerMapping.getHandler(request);<\/p>\n
HandlerMapping<\/h6>\n
public interface HandlerMapping {
\n \/**
\n * ClassName: HandlerMapping
\n * Description: \u4e3b\u8981\u662f\u901a\u8fc7\u8bf7\u6c42\u83b7\u53d6\u5bf9\u5e94\u7684\u5904\u7406\u5668\u6267\u884c\u94fe\u3002
\n * Datetime: 2024\/4\/2 8:50
\n * Author: \u8001\u675c@\u52a8\u529b\u8282\u70b9
\n * Version: 1.0
\n *\/
\n HandlerExecutionChain getHandler(HttpServletRequest request) throws Exception;
\n}<\/p>\n
\u00a0HandlerMethod<\/h6>\n
package org.springmvc.web.method;<\/p>\n
import java.lang.reflect.Method;<\/p>\n
\/*
\n \u5904\u7406\u5668\u65b9\u6cd5 controller
\n *\/
\npublic class HandlerMethod {
\n \/*
\n \u5904\u7406\u5668\u5bf9\u8c61
\n *\/
\n private Object handler;
\n \/**
\n * \u8981\u6267\u884c\u7684\u65b9\u6cd5
\n *\/
\n private Method method;<\/p>\n
public HandlerMethod() {
\n }<\/p>\n
public HandlerMethod(Object handler, Method method) {
\n this.handler = handler;
\n this.method = method;
\n }<\/p>\n
\/**
\n * \u83b7\u53d6
\n * @return handler
\n *\/
\n public Object getHandler() {
\n return handler;
\n }<\/p>\n
\/**
\n * \u8bbe\u7f6e
\n * @param handler
\n *\/
\n public void setHandler(Object handler) {
\n this.handler = handler;
\n }<\/p>\n
\/**
\n * \u83b7\u53d6
\n * @return method
\n *\/
\n public Method getMethod() {
\n return method;
\n }<\/p>\n
\/**
\n * \u8bbe\u7f6e
\n * @param method
\n *\/
\n public void setMethod(Method method) {
\n this.method = method;
\n }<\/p>\n
public String toString() {
\n return "HandlerMethod{handler = " + handler + ", method = " + method + "}";
\n }
\n}<\/p>\n
RequestMappingInfo<\/h6>\n
package org.springmvc.web.servlet;<\/p>\n
import java.util.Objects;<\/p>\n
public class RequestMappingInfo {
\n private String requestURI;<\/p>\n
@Override
\n public boolean equals(Object o) {
\n if (this == o) return true;
\n if (o == null || getClass() != o.getClass()) return false;
\n RequestMappingInfo that = (RequestMappingInfo) o;
\n return Objects.equals(requestURI, that.requestURI) && Objects.equals(method, that.method);
\n }<\/p>\n
@Override
\n public int hashCode() {
\n return Objects.hash(requestURI, method);
\n }<\/p>\n
\/\/GET POST PUT DELETE
\n private String method;<\/p>\n
public RequestMappingInfo() {
\n }<\/p>\n
public RequestMappingInfo(String requestURI, String method) {
\n this.requestURI = requestURI;
\n this.method = method;
\n }<\/p>\n
\/**
\n * \u83b7\u53d6
\n * @return requestURI
\n *\/
\n public String getRequestURI() {
\n return requestURI;
\n }<\/p>\n
\/**
\n * \u8bbe\u7f6e
\n * @param requestURI
\n *\/
\n public void setRequestURI(String requestURI) {
\n this.requestURI = requestURI;
\n }<\/p>\n
\/**
\n * \u83b7\u53d6
\n * @return method
\n *\/
\n public String getMethod() {
\n return method;
\n }<\/p>\n
\/**
\n * \u8bbe\u7f6e
\n * @param method
\n *\/
\n public void setMethod(String method) {
\n this.method = method;
\n }<\/p>\n
public String toString() {
\n return "RequestMappingInfo{requestURI = " + requestURI + ", method = " + method + "}";
\n }
\n}<\/p>\n
RequestMappingHandlerMapping<\/h6>\n
package org.springmvc.web.servlet.mvc.method.annotation;<\/p>\n
import jakarta.servlet.http.HttpServletRequest;
\nimport org.springmvc.web.constant.Constant;
\nimport org.springmvc.web.context.WebApplicationContext;
\nimport org.springmvc.web.method.HandlerMethod;
\nimport org.springmvc.web.servlet.*;<\/p>\n
import java.util.List;
\nimport java.util.Map;<\/p>\n
\/*
\n \u5904\u7406\u5668\u6620\u5c04\u5668 \u4e13\u95e8\u4e3a @RequestMapping \u6ce8\u89e3\u7684\u7c7b\u670d\u52a1\u7684\u5904\u7406\u5668\u6620\u5c04\u5668
\n \u901a\u8fc7\u524d\u7aef\u63d0\u4ea4\u7684\u8bf7\u6c42 \u6765\u5e95\u5c42\u6620\u5c04\u8981\u6267\u884c\u7684HandlerMethod
\n *\/
\npublic class RequestMappingHandlerMapping implements HandlerMapping {<\/p>\n
private Map<RequestMappingInfo, HandlerMethod> map;<\/p>\n
\/*
\n \u521b\u5efaHandlerMapping\u5bf9\u8c61\u65f6 \u7ed9map\u8d4b\u503c
\n *\/<\/p>\n
public RequestMappingHandlerMapping(Map<RequestMappingInfo, HandlerMethod> map) {
\n this.map = map;
\n }<\/p>\n
@Override
\n public HandlerExecutionChain getHandler(HttpServletRequest request) throws Exception {<\/p>\n
\/\/\u901a\u8fc7request\u5bf9\u8c61 \u83b7\u53d6\u8bf7\u6c42\u8def\u5f84，\u8bf7\u6c42\u65b9\u5f0f \u5c01\u88c5\u7a0bRequestMappingInfo
\n RequestMappingInfo requestMappingInfo=new RequestMappingInfo(request.getServletPath(),request.getMethod());
\n \/\/******************\u5fc5\u987b\u91cd\u5199 \u5982\u679c\u8865\u5145\u5199 key\u662f\u5bf9\u8c61 \u5bf9\u4e8e\u76f8\u540c\u8bf7\u6c42\u521b\u5efa\u591a\u4e2a\u5bf9\u8c61 \u53ef\u80fd\u8ba4\u4e3a\u662f\u4e0d\u540c\u7684
\n HandlerExecutionChain handlerExecutionChain =new HandlerExecutionChain();
\n \/\/\u7ed9\u6267\u884c\u8fde\u8bbe\u7f6ehandlerMethod
\n handlerExecutionChain.setHandler(map.get(requestMappingInfo));
\n \/\/\u7ed9\u6267\u884c\u8fde\u8bbe\u7f6e\u62e6\u622a\u5668<\/p>\n
\/\/\u901a\u8fc7Spring\u5bb9\u5668
\n WebApplicationContext webApplicationContext=(WebApplicationContext)request.getServletContext().getAttribute(Constant.WEB_APPLICATION_CONTEXT);
\n List<HandlerInterceptor> interceptors=(List<HandlerInterceptor>)webApplicationContext.getBean(Constant.INTERCEPROTS);
\n handlerExecutionChain.setInterceptors(interceptors);
\n return handlerExecutionChain;
\n }
\n}<\/p>\n
\u5904\u7406\u5668\u6267\u884c\u94fe\u5bf9\u8c61\u00a0<\/h6>\n
![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250429023800-68103b88ada8f.png\")
<\/p>\n
\u00a0\u6ce8\u610f：<\/h6>\n
public RequestMappingHandlerMapping(Map<RequestMappingInfo, HandlerMethod> map) { \u00a0 \u00a0 \u00a0 \u00a0 this.map = map; \u00a0 \u00a0 }<\/p>\n
\u5305\u626b\u63cf\u7684\u65f6\u5019\u521d\u59cb\u5316RequestMappingHandlerMapping\u65f6 \u8981\u4f20\u5165Map\u5bf9\u8c61 \u6240\u4ee5\u5305\u626b\u63cf\u8981\u6539\u4e3a\u4e0b\u9762\u7684\u4ee3\u7801<\/p>\n
private Map<RequestMappingInfo, HandlerMethod> componentScan(String basePackage) throws ClassNotFoundException, NoSuchMethodException, InvocationTargetException, InstantiationException, IllegalAccessException {<\/p>\n
Map<RequestMappingInfo, HandlerMethod>handlerMethodMap=new HashMap<>();
\n \/\/\u83b7\u53d6\u7edd\u5bf9\u8def\u5f84
\n String dirPath=Thread.currentThread().getContextClassLoader().getResource(basePackage
\n .replace(".","\/")).getPath();
\n File file=new File(URLDecoder.decode(dirPath));\/\/\u5c01\u88c5\u4e3a\u6587\u4ef6
\n \/\/\u83b7\u53d6\u91cc\u9762\u6240\u6709\u7684\u5b50\u6587\u4ef6
\n if(file.isDirectory()){
\n File[] files = file.listFiles();
\n for(File classFile:files){
\n if(classFile.getName().endsWith(Constant.SUFFER_CLASS)){
\n String className=basePackage+"."+classFile.getName().substring(0,classFile.getName().lastIndexOf("."));<\/p>\n
Class<?> clazz = Class.forName(className);
\n Constructor<?>defaultCon= clazz.getDeclaredConstructor();
\n \/\/System.out.println("\u7b80\u5355\u7c7b\u540d"+clazz.getSimpleName());
\n Object bean=defaultCon.newInstance();
\n beanMap.put(firstCharLowerCase(clazz.getSimpleName()), bean);
\n \/\/UserController \u9ed8\u8ba4beanName \u9996\u5b57\u6bcd\u5c0f\u5199<\/p>\n
\/\/\u83b7\u53d6\u7c7b\u4e0a\u9762\u7684\u6ce8\u89e3 @Controller\u6ce8\u89e3\u5305\u56f4
\n if(clazz.isAnnotationPresent(Controller.class)){\/\/\u88abController\u6ce8\u89e3\u5305\u88f9
\n \/\/\u83b7\u53d6\u7c7b\u4e2d\u6240\u6709\u7684\u65b9\u6cd5
\n Method []methods=clazz.getDeclaredMethods();
\n for(Method method:methods){
\n \/\/\u5982\u679c\u8be5\u6ce8\u89e3\u88abRequestMapping\u6ce8\u89e3\u5305\u88f9
\n if(method.isAnnotationPresent(RequestMapping.class)){
\n RequestMapping requestMapping=method.getAnnotation(RequestMapping.class);
\n String requestURI=requestMapping.value()[0];
\n String requestMethod=requestMapping.method().toString();\/\/ GET
\n RequestMappingInfo requestMappingInfo=new RequestMappingInfo(requestURI,requestMethod);
\n HandlerMethod handlerMethod=new HandlerMethod();\/\/\u8bf7\u6c42\u7684\u65b9\u6cd5
\n handlerMethod.setHandler(bean);
\n handlerMethod.setMethod(method);
\n handlerMethodMap.put(requestMappingInfo,handlerMethod);
\n }
\n }
\n }
\n }
\n }<\/p>\n
} <\/p>\n
\u6267\u884c\u62e6\u622a\u5668\u7684\u4e2dpreHandler\u65b9\u6cd5<\/h6>\n
public boolean applyPreHandle(HttpServletRequest request, HttpServletResponse response) throws Exception {
\n for (int i = 0; i <interceptors.size() ; i++) {
\n HandlerInterceptor handlerInterceptor = interceptors.get(i);
\n boolean result=handlerInterceptor.preHandle(request,response,handler);<\/p>\n
if(!result){
\n \/\/\u6267\u884c\u62e6\u622a\u5668\u7684AfterCompletion
\n triggerAfterCompletion(request,response,handler);
\n return false;
\n }
\n }
\n return true;
\n } <\/p>\n
.\u6267\u884c\u5904\u7406\u5668\u65b9\u6cd5 \u8fd4\u56deModelAndView<\/h6>\n
public interface HandlerAdapter {
\n ModelAndView handle(HttpServletRequest request, HttpServletResponse response,Object handler) throws Exception;
\n}<\/p>\n
public class RequestMappingHandlerAdapter implements HandlerAdapter {
\n @Override
\n public ModelAndView handle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
\n \/\/\u9700\u8981\u8c03\u7528\u5904\u7406\u5668\u65b9\u6cd5
\n HandlerMethod handlerMethod = (HandlerMethod)handler;<\/p>\n
\/\/\u83b7\u53d6\u63a7\u5236\u5668
\n Object controller=handlerMethod.getHandler();<\/p>\n
\/\/\u83b7\u53d6\u8c03\u7528\u7684\u65b9\u6cd5
\n Method method=handlerMethod.getMethod();
\n ModelMap modelMap=new ModelMap();
\n \/\/\u901a\u8fc7\u53cd\u5c04\u673a\u5236\u8c03\u7528
\n String viewName=(String)method.invoke(controller,modelMap);
\n \/\/\u81ea\u5df1\u5199\u7684\u76ee\u524d\u9700\u8981 Controller\u6307\u5b9aModelMap
\n \/\/\u8fd8\u6709\u4e00\u4e2a\u7279\u6b8a\u8981\u6c42 \u8981\u6c42\u8fd4\u56de\u903b\u8f91\u8bd5\u56fe\u540d\u79f0<\/p>\n
ModelAndView modelAndView = new ModelAndView();
\n modelAndView.setViewName(viewName);
\n modelAndView.setModel(modelMap);
\n return modelAndView;
\n }
\n}<\/p>\n
package org.springmvc.ui;<\/p>\n
import java.util.LinkedHashMap;<\/p>\n
public class ModelMap extends LinkedHashMap<String, Object> {
\n public ModelMap() {
\n }
\n public ModelMap addAttribute(String name, String value) {
\n this.put(name,value);
\n return this;
\n }
\n}<\/p>\n
package org.springmvc.oa.controller;<\/p>\n
import org.springmvc.stereotype.Controller;
\nimport org.springmvc.ui.ModelMap;
\nimport org.springmvc.web.bind.annotation.RequestMapping;
\nimport org.springmvc.web.bind.annotation.RequestMethod;<\/p>\n
@Controller
\npublic class UserController {
\n @RequestMapping(value ="\/index", method = RequestMethod.GET)
\n public String index(ModelMap modelMap){
\n modelMap.put("name","liwu");
\n return "index";
\n }
\n}<\/p>\n
![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250429023800-68103b88f051f.png\")
<\/h6>\n\u6267\u884c\u62e6\u622a\u5668\u4e2dpostHanlder<\/h6>\n
public void applyPostHandle(HttpServletRequest request, HttpServletResponse response, ModelAndView mv) throws Exception {
\n for(int i=interceptors.size()-1;i>=0;i–){
\n HandlerInterceptor handlerInterceptor = interceptors.get(i);
\n handlerInterceptor.postHandle(request,response,handler,mv);
\n }
\n } <\/p>\n
\u89c6\u56fe\u89e3\u6790\u5668 \u903b\u8f91\u8bd5\u56fe\u540d\u79f0\u8f6c\u4e3a\u7269\u7406\u89c6\u56fe\u540d\u79f0<\/h6>\n
public interface ViewResolver {
\n \/*
\n \u89e3\u6790\u903b\u8f91\u89c6\u56fe\u540d\u79f0，\u8fd4\u56de\u89c6\u56fe\u5bf9\u8c61
\n *\/
\n View resolveViewName(String viewName, Locale locale) throws Exception;<\/p>\n
}
\n public View resolveViewName(String viewName, Locale locale) throws Exception {<\/p>\n
return new InternalResourceView("text\/html;charset-UTF-8", prefix+viewName+suffix);
\n }<\/p>\n
public void render(Map<String, ?> model, HttpServletRequest request, HttpServletResponse response) throws Exception {
\n \/\/\u8bbe\u7f6e\u54cd\u5e94\u7c7b\u578b
\n response.setContentType(contentType);
\n \/\/\u5c06model\u6570\u636e\u5b58\u50a8\u5230request\u57df\u4e2d
\n \/\/\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u8df3\u8f6c\u5230\u89c6\u56fe\u4ee5\u8f6c\u53d1\u65b9\u5f0f
\n model.forEach((key,value)->{
\n request.setAttribute(key,value);
\n });
\n request.getRequestDispatcher(path).forward(request,response);
\n } <\/p>\n
\u6267\u884c\u62e6\u622a\u5668\u6e32\u67d3\u4e4b\u540e\u7684afterCompletetion\u65b9\u6cd5<\/h6>\n
public void triggerAfterCompletion(HttpServletRequest request, HttpServletResponse response, Object o) throws Exception {
\n for(int i=interceptors.size()-1;i>=0;i–){
\n HandlerInterceptor handlerInterceptor = interceptors.get(i);
\n handlerInterceptor.afterCompletion(request, response,handler, (Exception) o);
\n }
\n } <\/p>\n
SSM\u6574\u5408<\/h2>\n\u5f15\u5165\u76f8\u5173\u4f9d\u8d56<\/h3>\n
<?xml version="1.0" encoding="UTF-8"?>
\n<project xmlns="http:\/\/maven.apache.org\/POM\/4.0.0"
\n xmlns:xsi="http:\/\/www.w3.org\/2001\/XMLSchema-instance"
\n xsi:schemaLocation="http:\/\/maven.apache.org\/POM\/4.0.0 http:\/\/maven.apache.org\/xsd\/maven-4.0.0.xsd">
\n <modelVersion>4.0.0<\/modelVersion><\/p>\n
<groupId>org.springmvc<\/groupId>
\n <artifactId>ssm-annotation<\/artifactId>
\n <version>1.0-SNAPSHOT<\/version>
\n <packaging>war<\/packaging>
\n <dependencies>
\n <!–springmvc–>
\n <dependency>
\n <groupId>org.springframework<\/groupId>
\n <artifactId>spring-webmvc<\/artifactId>
\n <version>6.1.4<\/version>
\n <\/dependency><\/p>\n
<!–spring jdbc–>
\n <dependency>
\n <groupId>org.springframework<\/groupId>
\n <artifactId>spring-jdbc<\/artifactId>
\n <version>6.1.4<\/version>
\n <\/dependency>
\n <!–mybatis–>
\n <dependency>
\n <groupId>org.mybatis<\/groupId>
\n <artifactId>mybatis<\/artifactId>
\n <version>3.5.15<\/version>
\n <\/dependency>
\n <!–mybatis spring–>
\n <dependency>
\n <groupId>org.mybatis<\/groupId>
\n <artifactId>mybatis-spring<\/artifactId>
\n <version>3.0.3<\/version>
\n <\/dependency>
\n <!–mysql\u9a71\u52a8–>
\n <dependency>
\n <groupId>com.mysql<\/groupId>
\n <artifactId>mysql-connector-j<\/artifactId>
\n <version>8.3.0<\/version>
\n <\/dependency>
\n <!–\u5fb7\u9c81\u4f0a\u8fde\u63a5\u6c60–>
\n <dependency>
\n <groupId>com.alibaba<\/groupId>
\n <artifactId>druid<\/artifactId>
\n <version>1.2.22<\/version>
\n <\/dependency>
\n <!–jackson–>
\n <dependency>
\n <groupId>com.fasterxml.jackson.core<\/groupId>
\n <artifactId>jackson-databind<\/artifactId>
\n <version>2.17.0<\/version>
\n <\/dependency>
\n <!–servlet api–>
\n <dependency>
\n <groupId>jakarta.servlet<\/groupId>
\n <artifactId>jakarta.servlet-api<\/artifactId>
\n <version>6.0.0<\/version>
\n <scope>provided<\/scope>
\n <\/dependency>
\n <!–logback–>
\n <dependency>
\n <groupId>ch.qos.logback<\/groupId>
\n <artifactId>logback-classic<\/artifactId>
\n <version>1.5.3<\/version>
\n <\/dependency>
\n <!–thymeleaf\u548cspring6\u7684\u6574\u5408\u4f9d\u8d56–>
\n <dependency>
\n <groupId>org.thymeleaf<\/groupId>
\n <artifactId>thymeleaf-spring6<\/artifactId>
\n <version>3.1.2.RELEASE<\/version>
\n <\/dependency>
\n <dependency>
\n <groupId>org.projectlombok<\/groupId>
\n <artifactId>lombok<\/artifactId>
\n <version>RELEASE<\/version>
\n <scope>compile<\/scope>
\n <\/dependency>
\n <\/dependencies>
\n <properties>
\n <maven.compiler.source>21<\/maven.compiler.source>
\n <maven.compiler.target>21<\/maven.compiler.target>
\n <project.build.sourceEncoding>UTF-8<\/project.build.sourceEncoding>
\n <\/properties><\/p>\n
<\/project> <\/p>\n
\u521b\u5efa\u5305\u7ed3\u6784<\/h3>\n
![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250429023801-68103b8941b33.png\")
<\/p>\n
\u00a0\u521b\u5efawebapp\u76ee\u5f55<\/h3>\n
![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250429023801-68103b89d56a6.png\")
<\/p>\n
Spring\u6574\u5408Mybatis\u00a0<\/h3>\n\u7f16\u5199mybatis.properties<\/h4>\n
mybatis.driverClassName=com.mysql.cj.jdbc.Driver
\nmybatis.url=jdbc:mysql:\/\/localhost:3306\/db03?useSSL=false&allowPublicKeyRetrieval=true
\nmybatis.username=root
\nmybatis.password=123456
\nmybatis.mapperLocations=classpath*:com\/gao\/ssm\/dao\/*Mapper.xml <\/p>\n
MybatisProperties\u00a0<\/h4>\n
package com.gao.ssm.dao;<\/p>\n
import org.springframework.beans.factory.annotation.Value;
\nimport org.springframework.context.annotation.PropertySource;
\nimport org.springframework.stereotype.Component;<\/p>\n
@Component
\n@PropertySource("classpath:mybatis.properties")
\npublic class MybatisProperties {
\n @Value("${mybatis.driverClassName}")
\n private String driverClassName;
\n @Value("${mybatis.url}")
\n private String url;
\n @Value("${mybatis.username}")
\n private String username;
\n @Value("${mybatis.password}")
\n private String password;
\n @Value("${mybatis.mapperLocations}")
\n private String mapperLocations;<\/p>\n
public MybatisProperties() {
\n }<\/p>\n
public MybatisProperties(String driverClassName, String url, String username, String password, String mapperLocations) {
\n this.driverClassName = driverClassName;
\n this.url = url;
\n this.username = username;
\n this.password = password;
\n this.mapperLocations = mapperLocations;
\n }<\/p>\n
\/**
\n * \u83b7\u53d6
\n * @return driverClassName
\n *\/
\n public String getDriverClassName() {
\n return driverClassName;
\n }<\/p>\n
\/**
\n * \u8bbe\u7f6e
\n * @param driverClassName
\n *\/
\n public void setDriverClassName(String driverClassName) {
\n this.driverClassName = driverClassName;
\n }<\/p>\n
\/**
\n * \u83b7\u53d6
\n * @return url
\n *\/
\n public String getUrl() {
\n return url;
\n }<\/p>\n
\/**
\n * \u8bbe\u7f6e
\n * @param url
\n *\/
\n public void setUrl(String url) {
\n this.url = url;
\n }<\/p>\n
\/**
\n * \u83b7\u53d6
\n * @return username
\n *\/
\n public String getUsername() {
\n return username;
\n }<\/p>\n
\/**
\n * \u8bbe\u7f6e
\n * @param username
\n *\/
\n public void setUsername(String username) {
\n this.username = username;
\n }<\/p>\n
\/**
\n * \u83b7\u53d6
\n * @return password
\n *\/
\n public String getPassword() {
\n return password;
\n }<\/p>\n
\/**
\n * \u8bbe\u7f6e
\n * @param password
\n *\/
\n public void setPassword(String password) {
\n this.password = password;
\n }<\/p>\n
\/**
\n * \u83b7\u53d6
\n * @return mapperLocations
\n *\/
\n public String getMapperLocations() {
\n return mapperLocations;
\n }<\/p>\n
\/**
\n * \u8bbe\u7f6e
\n * @param mapperLocations
\n *\/
\n public void setMapperLocations(String mapperLocations) {
\n this.mapperLocations = mapperLocations;
\n }<\/p>\n
public String toString() {
\n return "MybatisProperties{driverClassName = " + driverClassName + ", url = " + url + ", username = " + username + ", password = " + password + ", mapperLocations = " + mapperLocations + "}";
\n }
\n}<\/p>\n
MybatisConfig<\/h4>\n
package com.gao.ssm.config;<\/p>\n
import com.alibaba.druid.pool.DruidDataSource;
\nimport com.gao.ssm.dao.MybatisProperties;
\nimport org.mybatis.spring.SqlSessionFactoryBean;
\nimport org.mybatis.spring.annotation.MapperScan;
\nimport org.springframework.beans.factory.annotation.Autowired;
\nimport org.springframework.context.annotation.Bean;
\nimport org.springframework.context.annotation.ComponentScan;
\nimport org.springframework.context.annotation.Configuration;
\nimport org.springframework.context.annotation.Import;
\nimport org.springframework.core.io.Resource;
\nimport org.springframework.core.io.support.PathMatchingResourcePatternResolver;
\nimport org.springframework.core.io.support.ResourcePatternResolver;
\nimport org.springframework.jdbc.datasource.DataSourceTransactionManager;
\nimport org.springframework.transaction.PlatformTransactionManager;<\/p>\n
import javax.sql.DataSource;
\nimport java.io.IOException;<\/p>\n
@Configuration
\n@ComponentScan("com.gao.ssm.dao")
\n@MapperScan("com.gao.ssm.dao")
\npublic class MybatisConfig {
\n @Autowired
\n private MybatisProperties mybatisProperties;<\/p>\n
@Bean
\n public DataSource dataSource(){
\n DruidDataSource dataSource=new DruidDataSource();
\n dataSource.setUsername(mybatisProperties.getUsername());
\n dataSource.setPassword(mybatisProperties.getPassword());
\n dataSource.setUrl(mybatisProperties.getUrl());
\n dataSource.setDriverClassName(mybatisProperties.getDriverClassName());
\n return dataSource;
\n }<\/p>\n
@Bean
\n public SqlSessionFactoryBean sqlSessionFactoryBean(DataSource dataSource) throws IOException {
\n SqlSessionFactoryBean sqlSessionFactoryBean=new SqlSessionFactoryBean();
\n sqlSessionFactoryBean.setDataSource(dataSource);<\/p>\n
ResourcePatternResolver resolver=new PathMatchingResourcePatternResolver();
\n Resource[]resources=resolver.getResources(mybatisProperties.getMapperLocations());
\n sqlSessionFactoryBean.setMapperLocations(resources);
\n return sqlSessionFactoryBean;
\n }
\n @Bean
\n public PlatformTransactionManager platformTransactionManager(DataSource dataSource){
\n DataSourceTransactionManager dataSourceTransactionManager = new DataSourceTransactionManager();
\n dataSourceTransactionManager.setDataSource(dataSource);
\n return dataSourceTransactionManager;
\n }
\n}<\/p>\n
SpringConfig<\/h4>\n
package com.gao.ssm.config;<\/p>\n
import org.springframework.context.annotation.ComponentScan;
\nimport org.springframework.context.annotation.Configuration;
\nimport org.springframework.context.annotation.Import;
\nimport org.springframework.transaction.annotation.EnableTransactionManagement;<\/p>\n
@Configuration
\n@ComponentScan("com.gao.ssm.service")
\n@EnableTransactionManagement
\n@Import({MybatisConfig.class})
\npublic class SpringConfig {
\n}<\/p>\n
Spring\u6574\u5408Spring MVC<\/h3>\n
package com.gao.ssm.config;<\/p>\n
import jakarta.servlet.Filter;
\nimport org.springframework.context.annotation.Configuration;
\nimport org.springframework.web.filter.CharacterEncodingFilter;
\nimport org.springframework.web.filter.HiddenHttpMethodFilter;
\nimport org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;<\/p>\n
@Configuration
\npublic class WebAppInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {
\n \/*
\n \u914d\u7f6eSpring\u7684\u914d\u7f6e\u6587\u4ef6
\n *\/
\n @Override
\n protected Class<?>[] getRootConfigClasses() {
\n return new Class[0];
\n }<\/p>\n
\/*
\n SpringMVC\u914d\u7f6e\u6587\u4ef6
\n *\/
\n @Override
\n protected Class<?>[] getServletConfigClasses() {
\n return new Class[]{SpringMvcConfig.class};
\n }<\/p>\n
\/*
\n \u914d\u7f6eDispatcherServlet\u7684\u6620\u5c04\u89c4\u5219，\u5373url-pattern
\n *\/
\n @Override
\n protected String[] getServletMappings() {
\n return new String[]{"\/"};
\n }
\n \/**
\n * Spring\u7684\u914d\u7f6e
\n * @return
\n *\/<\/p>\n
@Override
\n protected Filter[] getServletFilters() {
\n CharacterEncodingFilter characterEncodingFilter = new CharacterEncodingFilter();
\n characterEncodingFilter.setEncoding("UTF-8");
\n characterEncodingFilter.setForceRequestEncoding(true);
\n characterEncodingFilter.setForceResponseEncoding(true);
\n \/\/!–\u9690\u85cf\u7684HTTP\u8bf7\u6c42\u65b9\u5f0f\u8fc7\u6ee4\u5668 \u5b57\u7b26\u7f16\u7801\u8fc7\u6ee4\u5668\u4e4b\u540e–>
\n HiddenHttpMethodFilter hiddenHttpMethodFilter = new HiddenHttpMethodFilter();<\/p>\n
return new Filter[]{characterEncodingFilter, hiddenHttpMethodFilter};
\n }<\/p>\n
}<\/p>\n
SpringMvcConfig<\/h4>\n
package com.gao.ssm.config;<\/p>\n
import com.gao.ssm.interceptor.MyInterceptor;
\nimport org.springframework.context.ApplicationContext;
\nimport org.springframework.context.annotation.Bean;
\nimport org.springframework.context.annotation.ComponentScan;
\nimport org.springframework.context.annotation.Configuration;
\nimport org.springframework.context.annotation.Import;
\nimport org.springframework.web.servlet.HandlerExceptionResolver;
\nimport org.springframework.web.servlet.config.annotation.*;
\nimport org.springframework.web.servlet.handler.SimpleMappingExceptionResolver;
\nimport org.thymeleaf.spring6.SpringTemplateEngine;
\nimport org.thymeleaf.spring6.templateresolver.SpringResourceTemplateResolver;
\nimport org.thymeleaf.spring6.view.ThymeleafViewResolver;
\nimport org.thymeleaf.templatemode.TemplateMode;
\nimport org.thymeleaf.templateresolver.ITemplateResolver;<\/p>\n
import java.util.List;
\nimport java.util.Properties;<\/p>\n
@Configuration
\n@ComponentScan("com.gao.ssm.handler")
\n@Import({SpringConfig.class})
\n@EnableWebMvc
\n\/\/\u5f00\u542f\u6ce8\u89e3\u9a71\u52a8
\npublic class SpringMvcConfig implements WebMvcConfigurer {
\n @Override
\n public void configureHandlerExceptionResolvers(List<HandlerExceptionResolver> resolvers) {
\n SimpleMappingExceptionResolver simpleHandlerExceptionResolver=new SimpleMappingExceptionResolver();
\n Properties prop = new Properties();
\n prop.setProperty("java.lang.Exception", "tip");
\n simpleHandlerExceptionResolver.setExceptionMappings(prop);
\n simpleHandlerExceptionResolver.setExceptionAttribute("e");
\n resolvers.add(simpleHandlerExceptionResolver);<\/p>\n
}<\/p>\n
@Bean
\n public ThymeleafViewResolver getViewResolver(SpringTemplateEngine springTemplateEngine) {
\n ThymeleafViewResolver resolver = new ThymeleafViewResolver();
\n resolver.setTemplateEngine(springTemplateEngine);
\n resolver.setCharacterEncoding("UTF-8");
\n resolver.setOrder(1);
\n return resolver;
\n }<\/p>\n
@Bean
\n public SpringTemplateEngine templateEngine(ITemplateResolver iTemplateResolver) {
\n SpringTemplateEngine templateEngine = new SpringTemplateEngine();
\n templateEngine.setTemplateResolver(iTemplateResolver);
\n return templateEngine;
\n }
\n public void addInterceptors(InterceptorRegistry registry) {
\n MyInterceptor myInterceptor = new MyInterceptor();
\n registry.addInterceptor(myInterceptor).addPathPatterns("\/**").excludePathPatterns("\/test");
\n }
\n @Override
\n public void addViewControllers(ViewControllerRegistry registry) {
\n registry.addViewController("\/index").setViewName("index");
\n }<\/p>\n
@Bean
\n public ITemplateResolver templateResolver(ApplicationContext applicationContext) {
\n SpringResourceTemplateResolver resolver = new SpringResourceTemplateResolver();
\n resolver.setApplicationContext(applicationContext);
\n resolver.setPrefix("\/WEB-INF\/thymeleaf\/");
\n resolver.setSuffix(".html");
\n resolver.setTemplateMode(TemplateMode.HTML);
\n resolver.setCharacterEncoding("UTF-8");
\n resolver.setCacheable(false);\/\/\u5f00\u53d1\u65f6\u5173\u95ed\u7f13\u5b58，\u6539\u52a8\u5373\u53ef\u751f\u6548
\n return resolver;
\n }<\/p>\n
@Override
\n \/\/\u5f00\u542f\u9759\u6001\u8d44\u6e90\u5904\u7406
\n public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
\n configurer.enable();
\n }
\n}<\/p>\n
\u6dfb\u52a0\u4e8b\u52a1\u63a7\u5236<\/h4>\n
@Configuration
\n@ComponentScan("com.gao.ssm.service")
\n@EnableTransactionManagement
\n@Import({MybatisConfig.class})
\npublic class SpringConfig {
\n}<\/p>\n
@Transactional()
\n@Service
\npublic class EmpServiceImpl implements EmpService{ <\/p>\n
pojo\u7c7b\u7f16\u5199<\/h4>\n
package com.gao.ssm.bean;<\/p>\n
import lombok.AllArgsConstructor;
\nimport lombok.Data;
\nimport lombok.NoArgsConstructor;<\/p>\n
import java.time.LocalDate;
\nimport java.time.LocalDateTime;<\/p>\n
\/**
\n * \u5458\u5de5\u5b9e\u4f53\u7c7b
\n *\/
\n@Data
\n@NoArgsConstructor
\n@AllArgsConstructor
\npublic class Emp {
\n private Integer id; \/\/ID
\n private String username; \/\/\u7528\u6237\u540d
\n private String password; \/\/\u5bc6\u7801
\n private String name; \/\/\u59d3\u540d
\n private Short gender; \/\/\u6027\u522b , 1 \u7537, 2 \u5973
\n private String image; \/\/\u56fe\u50cfurl
\n private Short job; \/\/\u804c\u4f4d , 1 \u73ed\u4e3b\u4efb , 2 \u8bb2\u5e08 , 3 \u5b66\u5de5\u4e3b\u7ba1 , 4 \u6559\u7814\u4e3b\u7ba1 , 5 \u54a8\u8be2\u5e08
\n private LocalDate entrydate; \/\/\u5165\u804c\u65e5\u671f
\n private Integer deptId; \/\/\u90e8\u95e8ID
\n private LocalDateTime createTime; \/\/\u521b\u5efa\u65f6\u95f4
\n private LocalDateTime updateTime; \/\/\u4fee\u6539\u65f6\u95f4
\n}<\/p>\n
dao\u7f16\u5199\u00a0<\/h4>\n
package com.gao.ssm.dao;<\/p>\n
import com.gao.ssm.bean.Emp;
\nimport org.apache.ibatis.annotations.Mapper;<\/p>\n
import java.util.List;
\npublic interface EmpDao {
\n List<Emp> listAll();<\/p>\n
Emp listOne(Emp emp);<\/p>\n
void add(Emp emp);
\n}<\/p>\n
service\u7f16\u5199<\/h4>\n
package com.gao.ssm.service;<\/p>\n
import com.gao.ssm.bean.Emp;<\/p>\n
import java.util.List;<\/p>\n
public interface EmpService{
\n public void register(Emp emp);<\/p>\n
public List<Emp> listAll();<\/p>\n
}
\npackage com.gao.ssm.service;<\/p>\n
import com.gao.ssm.bean.Emp;
\nimport com.gao.ssm.dao.EmpDao;
\nimport org.springframework.beans.factory.annotation.Autowired;
\nimport org.springframework.stereotype.Service;
\nimport org.springframework.transaction.annotation.Transactional;<\/p>\n
import java.util.List;<\/p>\n
@Transactional()
\n@Service
\npublic class EmpServiceImpl implements EmpService{
\n @Autowired
\n private EmpDao empDao;<\/p>\n
@Override
\n public void register(Emp emp) {
\n empDao.add(emp);
\n }<\/p>\n
@Override
\n public List<Emp> listAll() {
\n return empDao.listAll();
\n }
\n}<\/p>\n
handler\u7f16\u5199<\/h4>\n
package com.gao.ssm.handler;<\/p>\n
import com.gao.ssm.bean.Emp;
\nimport com.gao.ssm.service.EmpService;
\nimport org.springframework.beans.factory.annotation.Autowired;
\nimport org.springframework.web.bind.annotation.RequestMapping;
\nimport org.springframework.web.bind.annotation.RestController;<\/p>\n
import java.util.List;<\/p>\n
@RestController
\n@RequestMapping("\/emp")
\npublic class EmpController {
\n @Autowired
\n private EmpService empService;
\n @RequestMapping("\/list")
\n public String list(){
\n return empService.listAll().toString();
\n }
\n}<\/p>\n
EmpMapper.xml<\/h4>\n
<?xml version="1.0" encoding="UTF-8"?>
\n<!DOCTYPE mapper PUBLIC "-\/\/MyBatis\/\/DTD Mapper 3.0\/\/EN"
\n "http:\/\/mybatis.org\/dtd\/mybatis-3-mapper.dtd"><\/p>\n
<mapper namespace="com.gao.ssm.dao.EmpDao"><\/p>\n
<!– \u67e5\u8be2\u6240\u6709\u5458\u5de5 –>
\n <select id="listAll" resultType="com.gao.ssm.bean.Emp">
\n SELECT * FROM emp
\n <\/select><\/p>\n
<!– \u6839\u636e ID \u67e5\u8be2\u5355\u4e2a\u5458\u5de5 –>
\n <select id="listOne" resultType="com.gao.ssm.bean.Emp" parameterType="java.lang.Integer">
\n SELECT * FROM emp WHERE id = #{id}
\n <\/select><\/p>\n
<!– \u6dfb\u52a0\u5458\u5de5，\u8fd4\u56de\u4e3b\u952e ID –>
\n <insert id="add" parameterType="com.gao.ssm.bean.Emp" useGeneratedKeys="true" keyProperty="id">
\n INSERT INTO emp(username, name, gender, image, job, entrydate, dept_id, create_time, update_time)
\n VALUES (#{username}, #{name}, #{gender}, #{image}, #{job}, #{entrydate}, #{deptId}, #{createTime}, #{updateTime})
\n <\/insert><\/p>\n
<\/mapper><\/p>\n
\u6d4b\u8bd5\u00a0<\/h4>\n
<!DOCTYPE html>
\n<html lang="en" xmlns:th="http:\/\/www.thymeleaf.org">
\n<head>
\n <meta charset="UTF-8">
\n <title>ssm\u6574\u5408<\/title>
\n <!–\u5f15\u5165vue–>
\n <script th:src="@{\/static\/js\/vue3.4.21.js}"><\/script>
\n <!–\u5f15\u5165axios–>
\n <script th:src="@{\/static\/js\/axios.min.js}"><\/script>
\n<\/head>
\n<body>
\n<div id="app">
\n <button @click="getMessage">\u67e5\u8be2\u6240\u6709\u7528\u6237<\/button>
\n <h1>{{message}}<\/h1>
\n<\/div>
\n<script th:inline="javascript">
\n Vue.createApp({
\n data(){
\n return {
\n message : '\u5f88\u591a\u4fe1\u606f'
\n }
\n },
\n methods : {
\n async getMessage(){
\n console.log("————\u67e5\u8be2")
\n let response = await axios.get("\/ssm\/emp\/list")
\n console.log(response)
\n this.message = response.data
\n }
\n }
\n }).mount("#app")
\n<\/script>
\n<\/body>
\n<\/html> <\/p>\n","protected":false},"excerpt":{"rendered":"
\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb820\u6b21\uff0c\u70b9\u8d5e11\u6b21\uff0c\u6536\u85cf7\u6b21\u3002Spring\u5bb9\u5668\uff1aApplicationContextSpringWeb\u5bb9\u5668\uff1aWebApplicationContext\u3002<\/p>\n","protected":false},"author":2,"featured_media":34339,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[99,101,190],"topic":[],"class_list":["post-34347","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-java","tag-spring","tag-190"],"yoast_head":"\n