{"id":116434,"date":"2026-10-21T12:32:39","date_gmt":"2026-10-21T04:32:39","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/116434.html"},"modified":"2026-10-21T12:32:39","modified_gmt":"2026-10-21T04:32:39","slug":"spring-boot-%e5%88%86%e9%a1%b5%e6%8e%a5%e5%8f%a3%e6%80%8e%e4%b9%88%e5%86%99%ef%bc%9a%e4%bb%8e%e9%a1%b5%e7%a0%81%e6%a0%a1%e9%aa%8c%e5%88%b0%e5%89%8d%e7%ab%af%e7%bf%bb%e9%a1%b5","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/116434.html","title":{"rendered":"Spring Boot \u5206\u9875\u63a5\u53e3\u600e\u4e48\u5199\uff1a\u4ece\u9875\u7801\u6821\u9a8c\u5230\u524d\u7aef\u7ffb\u9875"},"content":{"rendered":"

\u5217\u8868\u7b2c\u4e00\u9875\u80fd\u663e\u793a，\u70b9\u4e0b\u4e00\u9875\u5374\u8fd8\u662f\u539f\u6765\u7684\u6570\u636e；\u6216\u8005\u6700\u540e\u4e00\u9875\u4e3a\u7a7a\u65f6，\u524d\u7aef\u8bef\u4ee5\u4e3a\u67e5\u8be2\u5931\u8d25\u3002\u5199\u5206\u9875\u529f\u80fd\u65f6，\u5148\u628a\u9875\u7801\u3001\u6bcf\u9875\u6761\u6570\u3001\u603b\u6570\u548c\u8d8a\u754c\u89c4\u5219\u7ea6\u5b9a\u6e05\u695a，\u80fd\u51cf\u5c11\u5f88\u591a\u8054\u8c03\u4e2d\u7684\u731c\u6d4b\u3002<\/p>\n

\u672c\u6587\u7528 Java 17\u3001Spring Boot 3.5.x \u7684 Web \u9879\u76ee\u505a\u4e00\u4e2a\u53ef\u4ee5\u72ec\u7acb\u63a5\u5165\u7684\u5c0f\u6f14\u793a：\u540e\u7aef\u8fd4\u56de\u56fe\u4e66\u5206\u9875\u6570\u636e，\u524d\u7aef\u7528\u4e24\u4e2a\u6309\u94ae\u5207\u6362\u3002\u6570\u636e\u56fa\u5b9a\u5728\u5185\u5b58\u91cc，\u4e0d\u8fde\u63a5\u6570\u636e\u5e93，\u91cd\u70b9\u662f\u8dd1\u901a\u5206\u9875\u5951\u7ea6\u3002\u4f9d\u636e\u5b98\u65b9\u8d44\u6599\u7f16\u5199，\u672a\u5728\u8bfb\u8005\u73af\u5883\u5b9e\u6d4b\u3002<\/p>\n

\u4e00\u3001\u5148\u5b9a\u63a5\u53e3\u89c4\u5219\u548c\u9884\u671f\u7ed3\u679c<\/h3>\n

\u6f14\u793a\u63a5\u53e3\u662f GET \/api\/demo\/books，page \u4ece 1 \u5f00\u59cb，size \u9ed8\u8ba4 2，\u8303\u56f4\u662f 1 \u5230 100\u3002\u8fd4\u56de items\u3001total\u3001page\u3001size\u3001pages\u3002\u8d85\u51fa\u6700\u540e\u4e00\u9875\u8fd4\u56de\u7a7a items \u548c\u6b63\u5e38\u603b\u6570；page \u5c0f\u4e8e 1 \u6216 size \u4e0d\u5408\u89c4\u8fd4\u56de 400，\u4e0d\u6084\u6084\u6539\u6210\u53e6\u4e00\u4e2a\u503c\u3002<\/p>\n

\u56fa\u5b9a\u6570\u636e\u5171\u6709\u4e94\u672c\u4e66，\u6bcf\u9875\u4e24\u672c，\u5e94\u5f97\u5230\u4e09\u9875\u3002\u7b2c\u4e00\u3001\u4e8c\u9875\u5404\u4e24\u6761，\u7b2c\u4e09\u9875\u4e00\u6761，\u7b2c\u56db\u9875\u4e3a\u7a7a\u3002items.length \u53ea\u80fd\u8868\u793a\u5f53\u524d\u9875\u6761\u6570，\u4e0d\u80fd\u62ff\u6765\u5145\u5f53 total，\u5426\u5219\u7ffb\u9875\u6309\u94ae\u4f1a\u5728\u7b2c\u4e00\u9875\u5c31\u88ab\u9519\u8bef\u7981\u7528\u3002<\/p>\n

\u8fd9\u662f\u4e00\u4efd\u6f14\u793a\u63a5\u53e3\u7ea6\u5b9a，\u4e0d\u610f\u5473\u7740\u6240\u6709\u5206\u9875\u7ec4\u4ef6\u90fd\u4ece 1 \u5f00\u59cb\u3002\u67d0\u4e9b\u7ec4\u4ef6\u4f7f\u7528\u4ece 0 \u5f00\u59cb\u7684\u7d22\u5f15，\u63a5\u5165\u65f6\u5e94\u5728\u8fb9\u754c\u5904\u8f6c\u6362\u4e00\u6b21，\u5e76\u5728\u524d\u540e\u7aef\u6587\u6863\u4e2d\u5199\u6e05\u695a，\u522b\u5728\u591a\u4e2a\u4f4d\u7f6e\u5404\u52a0\u4e00\u6b21 1\u3002<\/p>\n

\u4e8c\u3001\u6dfb\u52a0\u5b8c\u6574\u7684\u6f14\u793a\u63a7\u5236\u5668<\/h3>\n

\u51c6\u5907\u4e00\u4e2a\u5df2\u6709\u542f\u52a8\u7c7b\u5e76\u5305\u542b spring-boot-starter-web \u7684 Boot 3.5.x \u5de5\u7a0b，\u4e0d\u9700\u8981\u989d\u5916\u6dfb\u52a0\u6570\u636e\u5e93\u4f9d\u8d56\u3002\u5c06\u63a7\u5236\u5668\u653e\u5728\u542f\u52a8\u7c7b\u4e0b\u7ea7\u5305\u4e2d，\u793a\u4f8b\u5305\u540d\u6309\u5de5\u7a0b\u5b9e\u9645\u4fee\u6539：<\/p>\n

package<\/span> com.<\/span>example.<\/span>catalog.<\/span>web<\/span>;<\/span><\/p>\n

import<\/span> java.<\/span>util.<\/span><\/span>List<\/span><\/span>;<\/span>
\nimport<\/span> org.<\/span>springframework.<\/span>http.<\/span><\/span>HttpStatus<\/span><\/span>;<\/span>
\nimport<\/span> org.<\/span>springframework.<\/span>web.<\/span>bind.<\/span>annotation.<\/span><\/span>GetMapping<\/span><\/span>;<\/span>
\nimport<\/span> org.<\/span>springframework.<\/span>web.<\/span>bind.<\/span>annotation.<\/span><\/span>RequestParam<\/span><\/span>;<\/span>
\nimport<\/span> org.<\/span>springframework.<\/span>web.<\/span>bind.<\/span>annotation.<\/span><\/span>RestController<\/span><\/span>;<\/span>
\nimport<\/span> org.<\/span>springframework.<\/span>web.<\/span>server.<\/span><\/span>ResponseStatusException<\/span><\/span>;<\/span><\/p>\n

@RestController<\/span>
\npublic<\/span> class<\/span> DemoBookController<\/span> {<\/span>
\n public<\/span> record<\/span> Book<\/span>(<\/span>long<\/span> id,<\/span> String<\/span> title)<\/span> {<\/span>}<\/span>
\n public<\/span> record<\/span> PageData<\/span>(<\/span>List<\/span><<\/span>Book<\/span>><\/span><\/span> items,<\/span> long<\/span> total,<\/span>
\n int<\/span> page,<\/span> int<\/span> size,<\/span> long<\/span> pages)<\/span> {<\/span>}<\/span><\/p>\n

private<\/span> static<\/span> final<\/span> List<\/span><<\/span>Book<\/span>><\/span><\/span> BOOKS<\/span> =<\/span> List<\/span>.<\/span>of<\/span>(<\/span>
\n new<\/span> Book<\/span>(<\/span>101<\/span>,<\/span> "\u63a5\u53e3\u5165\u95e8\u624b\u8bb0"<\/span>)<\/span>,<\/span>
\n new<\/span> Book<\/span>(<\/span>102<\/span>,<\/span> "\u9875\u9762\u5e03\u5c40\u7ec3\u4e60"<\/span>)<\/span>,<\/span>
\n new<\/span> Book<\/span>(<\/span>103<\/span>,<\/span> "\u6570\u636e\u5e93\u5c0f\u5b9e\u9a8c"<\/span>)<\/span>,<\/span>
\n new<\/span> Book<\/span>(<\/span>104<\/span>,<\/span> "\u90e8\u7f72\u6392\u969c\u8bb0\u5f55"<\/span>)<\/span>,<\/span>
\n new<\/span> Book<\/span>(<\/span>105<\/span>,<\/span> "\u9879\u76ee\u91cd\u6784\u6e05\u5355"<\/span>)<\/span>
\n )<\/span>;<\/span><\/p>\n

@GetMapping<\/span>(<\/span>"\/api\/demo\/books"<\/span>)<\/span>
\n public<\/span> PageData<\/span> books<\/span>(<\/span>
\n @RequestParam<\/span>(<\/span>name =<\/span> "page"<\/span>,<\/span> defaultValue =<\/span> "1"<\/span>)<\/span> int<\/span> page,<\/span>
\n @RequestParam<\/span>(<\/span>name =<\/span> "size"<\/span>,<\/span> defaultValue =<\/span> "2"<\/span>)<\/span> int<\/span> size)<\/span> {<\/span>
\n if<\/span> (<\/span>page <<\/span> 1<\/span> ||<\/span> size <<\/span> 1<\/span> ||<\/span> size ><\/span> 100<\/span>)<\/span> {<\/span>
\n throw<\/span> new<\/span> ResponseStatusException<\/span>(<\/span>HttpStatus<\/span>.<\/span>BAD_REQUEST<\/span>,<\/span>
\n "page must be positive; size must be 1..100"<\/span>)<\/span>;<\/span>
\n }<\/span>
\n long<\/span> total =<\/span> BOOKS<\/span>.<\/span>size<\/span>(<\/span>)<\/span>;<\/span>
\n long<\/span> offset =<\/span> (<\/span>(<\/span>long<\/span>)<\/span> page –<\/span> 1<\/span>)<\/span> *<\/span> size;<\/span>
\n long<\/span> pages =<\/span> (<\/span>total +<\/span> size –<\/span> 1<\/span>)<\/span> \/<\/span> size;<\/span>
\n if<\/span> (<\/span>offset >=<\/span> total)<\/span> {<\/span>
\n return<\/span> new<\/span> PageData<\/span>(<\/span>List<\/span>.<\/span>of<\/span>(<\/span>)<\/span>,<\/span> total,<\/span> page,<\/span> size,<\/span> pages)<\/span>;<\/span>
\n }<\/span>
\n int<\/span> from =<\/span> (<\/span>int<\/span>)<\/span> offset;<\/span>
\n int<\/span> to<\/span> =<\/span> (<\/span>int<\/span>)<\/span> Math<\/span>.<\/span>min<\/span>(<\/span>offset +<\/span> size,<\/span> total)<\/span>;<\/span>
\n return<\/span> new<\/span> PageData<\/span>(<\/span>List<\/span>.<\/span>copyOf<\/span>(<\/span>BOOKS<\/span>.<\/span>subList<\/span>(<\/span>from,<\/span> to<\/span>)<\/span>)<\/span>,<\/span>
\n total,<\/span> page,<\/span> size,<\/span> pages)<\/span>;<\/span>
\n }<\/span>
\n}<\/span><\/p>\n

RequestParam \u7684 name \u5199\u660e\u8bf7\u6c42\u53c2\u6570\u540d，\u51cf\u5c11\u5bf9\u7f16\u8bd1\u53c2\u6570\u540d\u4fe1\u606f\u7684\u4f9d\u8d56\u3002\u5b57\u7b26\u4e32\u5f62\u5f0f\u7684 page=abc \u65e0\u6cd5\u8f6c\u6362\u4e3a int \u65f6，\u7531 MVC \u7684\u53c2\u6570\u8f6c\u6362\u6d41\u7a0b\u5904\u7406；\u5e94\u7528\u82e5\u6709\u81ea\u5b9a\u4e49\u5f02\u5e38\u5904\u7406\u5668，\u5e94\u4fdd\u6301\u5b83\u8fd4\u56de\u5408\u7406\u7684\u9519\u8bef\u72b6\u6001\u3002<\/p>\n

\u504f\u79fb\u91cf\u5728\u4e58\u6cd5\u524d\u8f6c\u6362\u6210 long，\u907f\u514d\u5927\u9875\u7801\u5148\u4ee5 int \u8fd0\u7b97\u53d1\u751f\u6ea2\u51fa\u3002\u53ea\u6709\u786e\u8ba4 offset \u5c0f\u4e8e\u8fd9\u4e2a\u6f14\u793a\u5217\u8868\u957f\u5ea6\u540e，\u624d\u8f6c\u56de\u5217\u8868\u7d22\u5f15\u3002subList \u4f7f\u7528\u5de6\u95ed\u53f3\u5f00\u533a\u95f4，\u5e76\u590d\u5236\u6210\u7ed3\u679c\u5217\u8868，\u907f\u514d\u5c06\u539f\u5217\u8868\u7684\u89c6\u56fe\u7ee7\u7eed\u4f20\u51fa\u3002<\/p>\n

\u4e09\u3001\u5148\u76f4\u63a5\u8bf7\u6c42，\u518d\u63a5\u5165\u9875\u9762<\/h3>\n

\u542f\u52a8\u5de5\u7a0b\u540e，\u6309\u5b9e\u9645\u7aef\u53e3\u8bbf\u95ee \/api\/demo\/books?page=2&size=2\u3002\u672a\u8bbe\u7f6e\u989d\u5916\u4e0a\u4e0b\u6587\u65f6，\u53ef\u5728\u672c\u673a\u4f7f\u7528 http:\/\/localhost:8080\/api\/demo\/books?page=2&size=2\u3002\u4f9d\u636e\u8fd9\u7ec4\u56fa\u5b9a\u6570\u636e，items \u5e94\u5305\u542b id 103\u3001104，total \u4e3a 5，pages \u4e3a 3\u3002\u8fd9\u4e9b\u662f\u4ee3\u7801\u63a8\u5bfc\u7684\u671f\u671b\u503c，\u4e0d\u662f\u5b9e\u6d4b\u54cd\u5e94\u622a\u56fe\u3002<\/p>\n

\u5982\u679c\u8fd4\u56de 404，\u5148\u6838\u5bf9\u63a7\u5236\u5668\u626b\u63cf\u3001\u7aef\u53e3\u548c\u4e0a\u4e0b\u6587；\u5982\u679c\u88ab\u767b\u5f55\u7cfb\u7edf\u62e6\u622a，\u4f7f\u7528\u9879\u76ee\u5df2\u6709\u7684\u5408\u6cd5\u4f1a\u8bdd\u3002\u4e0d\u8981\u4e3a\u4e86\u6f14\u793a\u5220\u9664\u5168\u7ad9\u6743\u9650\u63a7\u5236\u3002\u539f\u9879\u76ee\u82e5\u8bbe\u7f6e\u4e86\u7edf\u4e00\u54cd\u5e94\u5305\u88c5，\u8fd8\u8981\u786e\u8ba4\u524d\u7aef\u5b9e\u9645\u8bfb\u53d6\u7684\u5c42\u7ea7，\u662f\u54cd\u5e94\u4f53\u76f4\u63a5 items，\u8fd8\u662f\u4e1a\u52a1\u5305\u88c5\u4e2d\u7684 data.items\u3002<\/p>\n

\u540e\u7aef\u72ec\u7acb\u8bf7\u6c42\u901a\u8fc7\u540e，\u518d\u628a\u4ee5\u4e0b\u6587\u4ef6\u4fdd\u5b58\u4e3a src\/main\/resources\/static\/page-demo.html\u3002\u9875\u9762\u901a\u8fc7\u540c\u6e90\u5730\u5740\u8bf7\u6c42\u63a5\u53e3，\u793a\u4f8b\u9ed8\u8ba4\u65e0\u989d\u5916 context-path；\u6709\u4e0a\u4e0b\u6587\u7684\u5de5\u7a0b\u9700\u5c06 fetch \u5730\u5740\u5305\u542b\u6b63\u786e\u524d\u7f00\u3002<\/p>\n

<!<\/span>doctype<\/span> html<\/span>><\/span><\/span>
\n<<\/span>html<\/span> lang<\/span>=<\/span>"<\/span>zh-CN"<\/span><\/span>><\/span><\/span>
\n<<\/span>meta<\/span> charset<\/span>=<\/span>"<\/span>utf-8"<\/span><\/span>><\/span><\/span>
\n<<\/span>title<\/span>><\/span><\/span>\u56fe\u4e66\u5206\u9875\u6f14\u793a<\/<\/span>title<\/span>><\/span><\/span>
\n<<\/span>ul<\/span> id<\/span>=<\/span>"<\/span>books"<\/span><\/span>><\/span><\/span><\/<\/span>ul<\/span>><\/span><\/span>
\n<<\/span>p<\/span> id<\/span>=<\/span>"<\/span>status"<\/span><\/span> role<\/span>=<\/span>"<\/span>status"<\/span><\/span>><\/span><\/span><\/<\/span>p<\/span>><\/span><\/span>
\n<<\/span>button<\/span> id<\/span>=<\/span>"<\/span>prev"<\/span><\/span>><\/span><\/span>\u4e0a\u4e00\u9875<\/<\/span>button<\/span>><\/span><\/span>
\n<<\/span>button<\/span> id<\/span>=<\/span>"<\/span>next"<\/span><\/span>><\/span><\/span>\u4e0b\u4e00\u9875<\/<\/span>button<\/span>><\/span><\/span>
\n<<\/span>script<\/span>><\/span><\/span>
\nlet<\/span> page =<\/span> 1<\/span>;<\/span>
\nlet<\/span> pages =<\/span> 0<\/span>;<\/span>
\nlet<\/span> busy =<\/span> false<\/span>;<\/span>
\nconst<\/span> list =<\/span> document.<\/span>querySelector<\/span>(<\/span>'#books'<\/span>)<\/span>;<\/span>
\nconst<\/span> status =<\/span> document.<\/span>querySelector<\/span>(<\/span>'#status'<\/span>)<\/span>;<\/span>
\nconst<\/span> prev =<\/span> document.<\/span>querySelector<\/span>(<\/span>'#prev'<\/span>)<\/span>;<\/span>
\nconst<\/span> next =<\/span> document.<\/span>querySelector<\/span>(<\/span>'#next'<\/span>)<\/span>;<\/span>
\nfunction<\/span> controls<\/span>(<\/span>)<\/span> {<\/span>
\n prev.<\/span>disabled =<\/span> busy ||<\/span> page <=<\/span> 1<\/span>;<\/span>
\n next.<\/span>disabled =<\/span> busy ||<\/span> page >=<\/span> pages;<\/span>
\n}<\/span>
\nasync<\/span> function<\/span> load<\/span>(<\/span>target<\/span>)<\/span> {<\/span>
\n busy =<\/span> true<\/span>;<\/span>
\n controls<\/span>(<\/span>)<\/span>;<\/span>
\n status.<\/span>textContent =<\/span> '\u6b63\u5728\u52a0\u8f7d'<\/span>;<\/span>
\n try<\/span> {<\/span>
\n const<\/span> response =<\/span> await<\/span> fetch<\/span>(<\/span>`<\/span>\/api\/demo\/books?page=<\/span>${<\/span>target}<\/span><\/span>&size=2<\/span>`<\/span><\/span>)<\/span>;<\/span>
\n if<\/span> (<\/span>!<\/span>response.<\/span>ok)<\/span> throw<\/span> new<\/span> Error<\/span>(<\/span>`<\/span>HTTP <\/span>${<\/span>response.<\/span>status}<\/span><\/span>`<\/span><\/span>)<\/span>;<\/span>
\n const<\/span> data =<\/span> await<\/span> response.<\/span>json<\/span>(<\/span>)<\/span>;<\/span>
\n list.<\/span>replaceChildren<\/span>(<\/span>)<\/span>;<\/span>
\n for<\/span> (<\/span>const<\/span> item of<\/span> data.<\/span>items)<\/span> {<\/span>
\n const<\/span> li =<\/span> document.<\/span>createElement<\/span>(<\/span>'li'<\/span>)<\/span>;<\/span>
\n li.<\/span>textContent =<\/span> `<\/span>${<\/span>item.<\/span>id}<\/span><\/span>：<\/span>${<\/span>item.<\/span>title}<\/span><\/span>`<\/span><\/span>;<\/span>
\n list.<\/span>append<\/span>(<\/span>li)<\/span>;<\/span>
\n }<\/span>
\n page =<\/span> data.<\/span>page;<\/span>
\n pages =<\/span> data.<\/span>pages;<\/span>
\n status.<\/span>textContent =<\/span> `<\/span>\u7b2c <\/span>${<\/span>page}<\/span><\/span> \u9875，\u5171 <\/span>${<\/span>pages}<\/span><\/span> \u9875，\u603b\u8ba1 <\/span>${<\/span>data.<\/span>total}<\/span><\/span> \u6761<\/span>`<\/span><\/span>;<\/span>
\n }<\/span> catch<\/span> (<\/span>error)<\/span> {<\/span>
\n status.<\/span>textContent =<\/span> `<\/span>\u52a0\u8f7d\u5931\u8d25：<\/span>${<\/span>error.<\/span>message}<\/span><\/span>，\u53ef\u5237\u65b0\u91cd\u8bd5<\/span>`<\/span><\/span>;<\/span>
\n }<\/span> finally<\/span> {<\/span>
\n busy =<\/span> false<\/span>;<\/span>
\n controls<\/span>(<\/span>)<\/span>;<\/span>
\n }<\/span>
\n}<\/span>
\nprev.<\/span>addEventListener<\/span>(<\/span>'click'<\/span>,<\/span> (<\/span>)<\/span> =><\/span> load<\/span>(<\/span>page –<\/span> 1<\/span>)<\/span>)<\/span>;<\/span>
\nnext.<\/span>addEventListener<\/span>(<\/span>'click'<\/span>,<\/span> (<\/span>)<\/span> =><\/span> load<\/span>(<\/span>page +<\/span> 1<\/span>)<\/span>)<\/span>;<\/span>
\nload<\/span>(<\/span>1<\/span>)<\/span>;<\/span>
\n<\/span><\/span><\/<\/span>script<\/span>><\/span><\/span>
\n<\/<\/span>html<\/span>><\/span><\/span><\/p>\n

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