{"id":36950,"date":"2025-05-13T01:03:54","date_gmt":"2025-05-12T17:03:54","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/36950.html"},"modified":"2025-05-13T01:03:54","modified_gmt":"2025-05-12T17:03:54","slug":"jdbc%ef%bc%9ajava%e4%b8%8e%e6%95%b0%e6%8d%ae%e5%ba%93%e8%bf%9e%e6%8e%a5mavenmybatis","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/36950.html","title":{"rendered":"JDBC\uff1ajava\u4e0e\u6570\u636e\u5e93\u8fde\u63a5,Maven,MyBatis"},"content":{"rendered":"

JDBC<\/h2>\n

\u662f\u4f7f\u7528Java\u8bed\u8a00\u64cd\u4f5c\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7684\u4e00\u5957API<\/p>\n

JDBC\u662f\u63a5\u53e3，\u7528\u5176\u5b9e\u73b0\u4e00\u7cfb\u5217\u4e0d\u540c\u79cd\u7c7b\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7684\u5b9e\u73b0\u7c7b<\/p>\n

JDBC\u672c\u8d28:<\/h3>\n

\u00b7\u5b98\u65b9(sun\u516c\u53f8)\u5b9a\u4e49\u7684\u4e00\u5957\u64cd\u4f5c\u6240\u6709\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7684\u89c4\u5219，\u5373\u63a5\u53e3<\/p>\n

\u00b7\u5404\u4e2a\u6570\u636e\u5e93\u5382\u5546\u53bb\u5b9e\u73b0\u8fd9\u5957\u63a5\u53e3，\u63d0\u4f9b\u6570\u636e\u5e93\u9a71\u52a8jar\u5305<\/p>\n

\u00b7\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u8fd9\u5957\u63a5\u53e3(JDBC)\u7f16\u7a0b，\u771f\u6b63\u6267\u884c\u7684\u4ee3\u7801\u662f\u9a71\u52a8jar\u5305\u4e2d\u7684\u5b9e\u73b0\u7c7b<\/p>\n

JDBC\u597d\u5904：<\/h3>\n

\u00b7\u5404\u79cd\u6570\u636e\u5e93\u5382\u5546\u4f7f\u7528\u76f8\u540c\u7684\u63a5\u53e3，java\u4ee3\u7801\u4e0d\u9700\u8981\u9488\u5bf9\u4e0d\u540c\u7684\u6570\u636e\u5e93\u5206\u522b\u5f00\u53d1<\/p>\n

\u00b7\u53ef\u968f\u65f6\u66ff\u6362\u5e95\u5c42\u6570\u636e\u5e93，\u8bbf\u95ee\u6570\u636e\u5e93\u7684java\u4ee3\u7801\u57fa\u672c\u4e0d\u53d8<\/p>\n

\"\"<\/p>\n

\u4f7f\u7528： \u00a0<\/h3>\n

DriverManager<\/h4>\n

\u00b7DriverManager（\u9a71\u52a8\u7ba1\u7406\u7c7b）\u4f5c\u7528： 1\u00b7\u6ce8\u518c\u9a71\u52a8<\/p>\n

\"\"<\/p>\n

2\u00b7\u83b7\u53d6\u6570\u636e\u5e93\u8fde\u63a5<\/p>\n

\"\"<\/p>\n

Connection<\/h4>\n

\u00b7Connection（\u6570\u636e\u5e93\u8fde\u63a5\u5bf9\u8c61）\u4f5c\u7528：<\/p>\n

1\u00b7\u83b7\u53d6\u6267\u884cSQL\u7684\u5bf9\u8c61<\/h5>\n

\u00a0\u00a0\"\"<\/p>\n

2\u00b7\u7ba1\u7406\u4e8b\u52a1<\/h5>\n

\"\"<\/p>\n

\u5f00\u542f\u548c\u5173\u95ed\u4e8b\u7269\u7684\u5177\u4f53\u5b9e\u73b0：<\/p>\n

\"\"<\/p>\n

Statement<\/h4>\n

\"\"<\/p>\n

\u6267\u884cUpdate\u8bed\u53e5\u7684\u5b9e\u4f8b：<\/p>\n

\"\"<\/p>\n

ResultSet<\/h4>\n

\"\"<\/p>\n

PreparedStatement<\/h4>\n

\"\"<\/p>\n

SQL\u6ce8\u5165\u7684\u4f8b\u5b50：<\/h5>\n

\u5c06pwd\u5199\u6210<\/p>\n

'' or '1' = '1';<\/p>\n

\u5c31\u66f4\u6539\u4e86sql\u8bed\u53e5，\u5c06\u5176\u53d8\u4e3a<\/p>\n

select * from tb_user where username = name and password = '' or '1' = '1';<\/p>\n

\u00a0\u5148\u6267\u884cand\u8bed\u53e5\u7136\u540e\u518d\u662for\u8bed\u53e5<\/p>\n

\u8fd9\u6837\u65e0\u8bba\u5982\u4f55where \u540e\u9762\u7684\u8bed\u53e5\u90fd\u4f1a\u7b49\u4e8etrue\u5c31\u4f1a\u67e5\u8be2\u6240\u6709\u8bed\u53e5，\u8fd9\u6837\u4f7f\u7528resultSet.next()\u65f6\u5c31\u4f1a\u5b58\u5728\u8fd9\u6837\u7684\u7528\u6237，<\/p>\n

\"\"<\/p>\n

\u4f7f\u7528：<\/p>\n

\"\"<\/p>\n

\u4f7f\u7528<\/h5>\n

\"\"<\/p>\n

\u539f\u7406<\/h5>\n

\"\"<\/p>\n

\u5982\u679c\u5f00\u542f\u9884\u7f16\u8bd1\u529f\u80fd，\u9884\u7f16\u8bd1\u53d1\u751f\u7684\u65f6\u5019\u5c31\u662f\u5728\u521b\u5efaPreparedStatement\u5bf9\u8c61\u7684\u65f6\u5019，\u53ea\u9700\u8981PreparedStatement\u53ea\u9700\u8981\u7f16\u8bd1\u4e00\u6b21，\u540e\u7eed\u7684\u4ee3\u7801\u8981\u6539\u53d8SQL\u8bed\u53e5，\u5c31\u53ea\u8981\u6539\u53d8\u5360\u4f4d\u7b26\u4e2d\u7684\u5185\u5bb9，\u5c31\u4e0d\u4f1a\u518d\u7f16\u8bd1\u4e00\u6b21\u3002\u63d0\u9ad8\u6548\u7387\u3002<\/p>\n

\u6570\u636e\u5e93\u8fde\u63a5\u6c60<\/h3>\n

\u7b80\u4ecb：<\/h4>\n

\"\"<\/p>\n

\u4f7f\u7528：<\/h4>\n

\"\"<\/p>\n

Dirud\u8fde\u63a5\u6c60\u7684\u4f7f\u7528\u6b65\u9aa4<\/h4>\n

\"\"<\/p>\n

\u5b9e\u4f8b：<\/p>\n

\"\"<\/p>\n

Maven<\/h2>\n

\u6982\u51b5<\/h3>\n

Maven\u662f\u4e13\u95e8\u7528\u4e8e\u7ba1\u7406\u548c\u6784\u5efaJava\u9879\u76ee\u7684\u5de5\u5177，\u5b83\u7684\u4e3b\u8981\u529f\u80fd\u6709：<\/p>\n

\u00b7\u63d0\u4f9b\u4e86\u4e00\u5957\u6807\u51c6\u5316\u7684\u9879\u76ee\u7ed3\u6784<\/p>\n

\u00b7\u63d0\u4f9b\u4e86\u4e00\u5957\u6807\u51c6\u5316\u7684\u6784\u5efa\u6d41\u7a0b（\u7f16\u8bd1，\u6d4b\u8bd5\u6253\u5305，\u53d1\u5e03…..)<\/p>\n

\u00b7\u63d0\u4f9b\u4e86\u4e00\u5957\u4ee5\u6765\u7ba1\u7406\u673a\u5236<\/p>\n

\u6807\u51c6\u5316\u7684\u9879\u76ee\u7ed3\u6784<\/h4>\n

\"\"<\/p>\n

Maven\u9879\u76ee\u76ee\u5f55\u7684\u5b9e\u4f8b：<\/h5>\n

Maven\u63d0\u4f9b\u4e86\u4e00\u5957\u6807\u51c6\u5316\u7684\u9879\u76ee\u7ed3\u6784，\u6240\u6709IDE\u4f7f\u7528Maven\u6784\u5efa\u7684\u9879\u76ee\u7ed3\u6784\u5b8c\u5168\u4e00\u6837，\u6240\u6709IDE\u521b\u5efa\u7684Maven\u9879\u76ee\u53ef\u4ee5\u901a\u7528<\/p>\n

\"\"<\/p>\n

\u63d0\u4f9b\u4e86\u4e00\u5957\u6807\u51c6\u5316\u7684\u6784\u5efa\u6d41\u7a0b（\u7f16\u8bd1，\u6d4b\u8bd5\u6253\u5305，\u53d1\u5e03…..)<\/h4>\n

\"\"<\/p>\n

\u4f9d\u8d56\u7ba1\u7406\u673a\u5236<\/h4>\n

\u4f9d\u8d56\u7ba1\u7406\u5176\u5b9e\u5c31\u662f\u7ba1\u7406\u4f60\u9879\u76ee\u6240\u4f9d\u8d56\u7684\u7b2c\u4e09\u65b9\u8d44\u6e90(jar\u5305\u3001\u63d2\u4ef6…)<\/p>\n

\"\"<\/p>\n

\u7b80\u4ecb：<\/h3>\n

\"\"<\/p>\n

Maven\u6a21\u578b<\/h4>\n

\"\"<\/p>\n

\u4ed3\u5e93\u7684\u5206\u7c7b<\/h5>\n

\"\"<\/p>\n

\u5bfc\u5165jar\u5305\u7684\u8fc7\u7a0b<\/h5>\n

\"\"<\/p>\n

Maven\u5e38\u7528\u547d\u4ee4<\/h3>\n

\"\"<\/p>\n

Maven\u7684\u751f\u547d\u5468\u671f<\/h3>\n

\"\"<\/p>\n

Maven\u7684\u5750\u6807\u8be6\u89e3<\/h3>\n

\"\"<\/p>\n

Maven\u5bfc\u5165Maven\u9879\u76ee<\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n

\u4f9d\u8d56\u7ba1\u7406<\/h3>\n

\u4f7f\u7528\u5750\u6807\u5bfc\u5165jar\u5305<\/h4>\n

\"\"<\/p>\n

\"\"<\/p>\n

\u5feb\u6377\u65b9\u6cd5<\/h4>\n

\"\"<\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n

\u4f9d\u8d56\u8303\u56f4<\/h3>\n

\u901a\u8fc7\u8bbe\u7f6e\u5750\u6807\u7684\u4f9d\u8d56\u8303\u56f4(scope)，\u53ef\u4ee5\u8bbe\u7f6e\u5bf9\u5e94jar\u5305\u7684\u4f5c\u7528\u8303\u56f4:\u7f16\u8bd1\u73af\u5883\u3001\u6d4b\u8bd5\u73af\u5883\u3001\u8fd0\u884c\u73af\u5883<\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n

MyBatis<\/h3>\n

MyBatis\u662f\u4e00\u6b3e\u4f18\u79c0\u7684\u6301\u4e45\u5c42\u6846\u67b6，\u7528\u4e8e\u7b80\u5316JDBC\u5f00\u53d1<\/p>\n

MyBatis\u672c\u662fApache\u7684\u4e00\u4e2a\u5f00\u6e90\u9879\u76eeiBatis，2010\u5e74\u8fd9\u4e2a\u9879\u76ee\u7531apache software foundation\u8fc1\u79fb\u5230\u4e86Google code，\u5e76\u4e14\u6539\u540d\u4e3aMyBatis\u3002<\/p>\n

\u5b98\u7f51：https:\/\/mybatis.org\/mybatis-3\/zh\/index.html<\/p>\n

\u6301\u4e45\u5c42<\/h4>\n

\u8d1f\u8d23\u5c06\u6570\u636e\u5230\u4fdd\u5b58\u5230\u6570\u636e\u5e93\u7684\u90a3\u4e00\u5c42\u4ee3\u7801<\/p>\n

JavaEE\u4e09\u5c42\u67b6\u6784:\u8868\u73b0\u5c42\u3001\u4e1a\u52a1\u5c42\u3001\u6301\u4e45\u5c42<\/p>\n

\u6846\u67b6<\/h4>\n

\u6846\u67b6\u5c31\u662f\u4e00\u4e2a\u534a\u6210\u54c1\u8f6f\u4ef6，\u662f\u4e00\u5957\u53ef\u91cd\u7528\u7684，\u901a\u7528\u7684，\u8f6f\u4ef6\u57fa\u7840\u4ee3\u7801\u6a21\u578b<\/p>\n

\u5728\u6846\u67b6\u7684\u57fa\u7840\u4e4b\u4e0a\u6784\u5efa\u8f6f\u4ef6\u7f16\u5199\u66f4\u52a0\u9ad8\u6548，\u89c4\u8303，\u901a\u7528，\u53ef\u6269\u5c55<\/p>\n

MyBatis\u7b80\u5316<\/h4>\n

\"\"<\/p>\n

\u5feb\u901f\u5165\u95e8<\/h5>\n

\u8be6\u7ec6\u7f51\u5740：<\/p>\n

\u5165\u95e8_MyBatis\u4e2d\u6587\u7f51<\/p>\n

\"\"<\/p>\n

Mapper\u4ee3\u7406\u5f00\u53d1<\/h4>\n

\u76ee\u7684：<\/p>\n

\u89e3\u51b3\u539f\u751f\u653e\u5f0f\u4e2d\u7684\u786c\u7f16\u7801\u95ee\u9898<\/p>\n

\u7b80\u5316\u540e\u671f\u6267\u884cSQL<\/p>\n

\u4f7f\u7528<\/h5>\n

\"\"<\/p>\n

\u7b2c\u4e00\u6b65\u5c06\u63a5\u53e3\u548csql\u6620\u5c04\u6587\u4ef6\u653e\u5728\u540c\u4e00\u4e2a\u5305\u540d\u4e0b\u9762：\"\"<\/p>\n

\u4fee\u6539\u540d\u79f0\u7a7a\u95f4\u540d，\u4f7f\u5176\u4e0eMapper\u63a5\u53e3\u7684\u6743\u9650\u5b9a\u540d\u76f8\u540c<\/p>\n

\"\"<\/p>\n

\u521b\u5efa\u63a5\u53e3\u4fdd\u8bc1\u91cc\u9762\u7684\u8fd4\u56de\u503c\u548c\u65b9\u6cd5\u540d\u548c\u53c2\u6570\u4e0esql\u6620\u5c04\u6587\u4ef6\u7684sq\u8fd4\u56de\u503c\u8bed\u53e5\u7684\u552f\u4e00\u6807\u8bc6\u53c2\u6570\u76f8\u540c\u3002<\/p>\n

\"\"<\/p>\n

\u8fd8\u8981\u4fee\u6539mybatis-config.xml\u91cc\u9762\u7684mapper\u6620\u5c04\u8def\u5f84<\/p>\n

\"\"<\/p>\n

\u6700\u540e\u8fd0\u884c\u4ee3\u7801<\/p>\n

\"\"<\/p>\n

sql\u7247\u6bb5，\u6bcf\u6b21\u4e66\u5199SQL\u8bed\u53e5\u7684\u65f6\u5019\u5c31\u53ef\u4ee5\u6389\u8c03\u7528\u8fd9\u4e2a\u7247\u6bb5\u7684di\u7b80\u5316<\/h5>\n

\u4e66\u5199<\/p>\n

\"\"<\/p>\n

\u5f15\u7528<\/p>\n

\"\"<\/p>\n

resultMap\u5b8c\u7f8e\u89e3\u7edd\u5b57\u6bb5\u540d\u548cMapper\u7c7b\u578b\u7684\u540d\u79f0\u4e0d\u4e00\u6837\u7684\u95ee\u9898<\/h5>\n

\"\"<\/p>\n

\u53c2\u6570\u7684\u4f20\u5165<\/h5>\n

\u8981\u501f\u52a9\u53c2\u6570\u5360\u4f4d\u7b26\u6765\u4f20\u5165\u53c2\u6570：<\/p>\n

1\u00b7 #{} \u4f1a\u5c06\u5176\u53d8\u4e3a？，\u9632\u6b62sql\u6ce8\u5165<\/p>\n

2\u00b7 ${} \u4f1a\u4f7f\u7528\u62fc\u63a5\u5b57\u7b26\u4e32，\u5e76\u4e0d\u4f1a\u9632\u6b62sql\u6ce8\u5165<\/p>\n

\u5b9e\u4f8b：<\/p>\n

sql\u6620\u5c04\u4e2d<\/p>\n

\"\"<\/p>\n

\u00a0Mapper\u63a5\u53e3\u4e2d<\/p>\n

\"\"<\/p>\n

\u5982\u679c\u6709\u591a\u4e2a\u53c2\u6570\u5c31\u8981\u5728\u53c2\u6570\u524d\u9762\u6dfb\u52a0@<\/p>\n

@Param("")<\/p>\n

\u4f8b\u5982<\/p>\n

\"\"<\/p>\n

\u4e5f\u53ef\u4ee5\u901a\u8fc7\u4f20\u5165\u4e00\u4e2a\u5bf9\u5e94\u7684POJO\u7c7b，\u4f7f\u5176\u5c5e\u6027\u540d\u548c\u8981\u7528\u5230\u7684\u5b57\u6bb5\u540d\u4e00\u81f4\u5c31\u4f1a\u81ea\u52a8\u5339\u914d<\/p>\n

\"\"<\/p>\n

\u8fd8\u53ef\u4ee5\u901a\u8fc7Map\u96c6\u5408\u4f20\u5165<\/p>\n

*\u53ea\u9700\u8981\u4fdd\u8bc1sQL\u4e2d\u7684\u53c2\u6570\u540d\u548cmap\u96c6\u5408\u7684\u952e\u7684\u540d\u79f0\u5bf9\u5e94\u4e0a，\u5373\u53ef\u8bbe\u7f6e\u6210\u529f<\/p>\n

\u52a8\u6001sql<\/h5>\n
if\u8bed\u53e5<\/h6>\n<\/p>\n

\u4f7f\u7528if\u5224\u65ad\u54ea\u4e2a\u6761\u4ef6\u4e0d\u9700\u8981\u7684，\u8bfa\u4e0d\u6ee1\u8db3test\u91cc\u9762\u7684\u6761\u4ef6\u5c31\u4f1a\u5ffd\u7565if\u91cc\u9762\u7684\u8bed\u53e5<\/p>\n

<select id="selectUserByAll" resultMap="UserResultMap">
\n select * from user where
\n <if test="ID != null">
\n ID like #{ID}
\n <\/if>
\n <if test="Name != null and Name != ''">
\n and use_Name like #{Name}
\n <\/if>
\n <if test="Age != null">
\n and Age like #{Age}
\n <\/if>;<\/p>\n

<\/select> <\/p>\n

\u4e0a\u8ff0\u8bed\u53e5\u8fd8\u6709\u95ee\u9898，\u5982\u679c\u53ea\u6709\u4e2d\u95f4\u6709，\u5219\u4f1a\u8ba9\u5176\u53d8\u4e3awhere and use_Name like #{Name}\u8fd9\u6837\u4f1a\u62a5\u9519\u3002\u89e3\u51b3\u65b9\u6cd5，\u4f7f\u7528where\u8bed\u53e5\u5305\u88f9，\u4f1a\u53bb\u6389\u524d\u9762\u591a\u4f59\u7684and<\/p>\n

<select id="selectUserByAll" resultMap="UserResultMap">
\n select * from user <where>
\n <if test="ID != null">
\n and ID like #{ID}
\n <\/if>
\n <if test="Name != null and Name != ''">
\n and use_Name like #{Name}
\n <\/if>
\n <if test="Age != null">
\n and Age like #{Age}
\n <\/if>;
\n <\/where>
\n <\/select> <\/p>\n

choose\u8bed\u53e5.<\/h6>\n

\u591a\u6761\u4ef6\u4e2d\u9009\u62e9\u4e00\u4e2a<\/p>\n

choose（when,otherwise):\u9009\u62e9，\u7c7b\u4f3c\u4e8eJava\u4e2d\u7684switch\u8bed\u53e5<\/p>\n

<select id="selectUserByAll_choose" resultMap="UserResultMap">
\n select * from user where
\n <choose>
\n <when test="ID != null">
\n and ID like #{ID}
\n <\/when>
\n <when test="Name != null and Name != ''">
\n and use_Name like #{Name}
\n <\/when>
\n <when test="Age != null">
\n and Age like #{Age}
\n <\/when>
\n <otherwise>
\n and 1 != 1
\n <\/otherwise>
\n <\/choose>
\n <\/select> <\/p>\n

insert\u8bed\u53e5<\/h4>\n

\u57fa\u672c\u4f7f\u7528<\/h5>\n

\u8981\u7528insert\u8bed\u53e5\u6765\u8fdb\u884c\u5bf9\u5176\u6570\u636e\u7684\u6dfb\u52a0，<\/p>\n

<insert id="insertUser">
\n insert into user(ID,use_Name,Age)
\n values (#{ID},#{useName},#{Age});
\n <\/insert> <\/p>\n

\u8981\u6ce8\u610f\u7684\u662f，\u8fd9\u91ccmapper\u4ee3\u7406\u4e0d\u4f1a\u81ea\u52a8\u63d0\u4ea4\u4e8b\u52a1，\u8981\u8c03\u7528sqlSession.commit().\u624d\u4f1a\u63d0\u4ea4\u6dfb\u52a0\u540e\u7684\u7ed3\u679c<\/p>\n

String resource = "mybatis-config.xml";
\n InputStream inputStream = Resources.getResourceAsStream(resource);
\n SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);
\n SqlSession sqlSession = sqlSessionFactory.openSession();
\n userMapper mapper = sqlSession.getMapper(userMapper.class);
\n User user = new User();
\n user.setUse_Name("\u5927\u5f3a");
\n user.setAge(88);
\n user.setID(5);
\n mapper.insertUser(user);
\n sqlSession.commit(); <\/p>\n

\u4e5f\u53ef\u4ee5\u8bbe\u7f6e\u81ea\u52a8\u63d0\u4ea4\u4e8b\u52a1<\/p>\n

SqlSession sqlSession = sqlSessionFactory.openSession(true); <\/p>\n

\u4e3b\u952e\u8fd4\u56de<\/h5>\n

\u5bf9sql\u6620\u5c04\u6587\u4ef6\u8fdb\u884c\u8bbe\u7f6e，\u4f7f\u5176\u81ea\u52a8\u5c06\u4e3b\u952e\u7684\u503c\u8fd4\u56de\u5230\u5bf9\u8c61\u5bf9\u5e94\u7684\u5c5e\u6027\u53bb，\u8bbe\u7f6euseGeneratedKeys="true" keyProperty="ID"；\u5c31\u4f1a\u5c06\u4e3b\u952e\u7684\u503c\u8fd4\u56de\u5230user\u5bf9\u8c61\u7684\u5bf9\u5e94ID\u5c5e\u6027\u4e2d\u3002<\/p>\n

<insert id="insertUser" useGeneratedKeys="true" keyProperty="ID">
\n insert into user(ID,use_Name,Age)
\n values (#{ID},#{useName},#{Age});
\n <\/insert> <\/p>\n

update\u8bed\u53e5<\/h4>\n

\u53ef\u4ee5\u76f4\u63a5\u4f20\u5165\u5bf9\u8c61\u5c01\u88c5\u7684\u5c5e\u6027，\u4e5f\u53ef\u624b\u52a8\u4e00\u4e2a\u5b57\u6bb5\u4e00\u4e2a\u5b57\u6bb5\u7684\u6dfb\u52a0<\/p>\n

<update id="updateByID">
\n update user set use_Name=#{Name},Age=#{Age} where ID = #{ID};
\n <\/update> <\/p>\n

delete\u8bed\u53e5<\/h4>\n

\u5355\u4e2a\u5220\u9664<\/p>\n

<delete id="deleteByID">
\n delete from user where id = #{ID};
\n <\/delete> <\/p>\n

\u00a0\u52a8\u6001\u5220\u9664：\u9700\u8981\u4f7f\u7528\u6570\u7ec4\u6765\u4f20\u5165\u53c2\u6570，foreach\u4f1a\u81ea\u52a8\u5c06\u4f20\u5165\u8fdb\u6765\u7684\u6570\u7ec4\u8f6c\u4e3aMap\u96c6\u5408，\u5e76\u8fdb\u884c\u62c6\u89e3，\u53ef\u4ee5\u6307\u5b9a\u5206\u9694\u7b26<\/p>\n

collection：\u952e\u540d\u79f0\u00a0 \u00a0 \u00a0item：\u5bf9\u5e94\u7684sql\u5b57\u6bb5\u00a0 \u00a0 separator：\u5206\u9694\u5b57\u7b26 open：\u4ee5\u4ec0\u4e48\u5f00\u59cb close：\u4ee5\u4ec0\u4e48\u7ed3\u675f<\/p>\n

<delete id="deleteByID">
\n delete from user where id in <foreach collection ="array" item ="ID" separator="," open="(" close=")">
\n #{ID}
\n <\/foreach>
\n <\/delete> <\/p>\n

\u8fd9\u6bb5\u76f8\u5f53\u4e8e\u628aarray\u6570\u7ec4\u5728\u4e0b\u9762#{ID}\u6709\u591a\u5c11\u6b21：<\/p>\n

delete from user where id in(#{ID},#{ID} …….)<\/p>\n

\u5e76\u7528,\u5206\u9694\u3002<\/p>\n

collection \u7ec6\u8282：\u5982\u679c\u662f\u6570\u7ec4\u5219=\u201carray\u201d\u662f\u53ef\u4ee5\u7684，\u4e5f\u53ef\u4ee5\u81ea\u5df1\u7528@Param\u6307\u5b9a<\/p>\n

\"\"<\/p>\n

Mybaties\u5c01\u88c5\u53c2\u6570\u7684\u539f\u7406<\/h4>\n

\"\"<\/p>\n","protected":false},"excerpt":{"rendered":"

\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb1k\u6b21\uff0c\u70b9\u8d5e25\u6b21\uff0c\u6536\u85cf9\u6b21\u3002Maven\u5bfc\u5165Maven\u9879\u76ee\u3002<\/p>\n","protected":false},"author":2,"featured_media":36930,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[99,190,100],"topic":[],"class_list":["post-36950","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-java","tag-190","tag-100"],"yoast_head":"\nJDBC\uff1ajava\u4e0e\u6570\u636e\u5e93\u8fde\u63a5,Maven,MyBatis - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/36950.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"JDBC\uff1ajava\u4e0e\u6570\u636e\u5e93\u8fde\u63a5,Maven,MyBatis - 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