{"id":5588,"date":"2026-03-23T19:29:14","date_gmt":"2026-03-23T11:29:14","guid":{"rendered":"https:\/\/www.xttblog.com\/?p=5588"},"modified":"2026-03-23T19:29:14","modified_gmt":"2026-03-23T11:29:14","slug":"%e4%b9%b1%e7%94%a8-spring-boot-%e5%8f%82%e6%95%b0%e6%a0%a1%e9%aa%8c-bindingresult-%e7%9a%84-6-%e4%b8%aa%e5%a4%a7%e5%9d%91%ef%bc%8c%e6%88%91%e8%a2%ab%e7%ac%ac-4-%e4%b8%aa%e5%9d%91%e4%ba%86-3-%e5%b0%8f","status":"publish","type":"post","link":"https:\/\/www.xttblog.com\/?p=5588","title":{"rendered":"\u4e71\u7528 Spring Boot \u53c2\u6570\u6821\u9a8c BindingResult \u7684 6 \u4e2a\u5927\u5751\uff0c\u6211\u88ab\u7b2c 4 \u4e2a\u5751\u4e86 3 \u5c0f\u65f6"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u4e0a\u5468\u4e94\uff0c\u5fae\u4fe1\u7fa4\u91cc\u8ba8\u8bba\u7684\u70ed\u706b\u671d\u5929\uff0c\u539f\u56e0\u662f\u88ab\u6211\u7684\u4e00\u7bc7\u6587\u7ae0\u300a<a href=\"https:\/\/mp.weixin.qq.com\/s\/PeCU6_GjRoorxUHyNzZGeA\">https:\/\/mp.weixin.qq.com\/s\/PeCU6_GjRoorxUHyNzZGeA<\/a>\u300b\u6fc0\u8d77\u4e86\u5927\u5bb6\u7684\u6124\u6168\uff01<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f53\u65f6\uff0c\u6709\u4e00\u4e2a\u7f51\u53cb\u63d0\u4e86\u4e00\u4e2a\u5173\u4e8e<code>BindingResult<\/code>\u4f7f\u7528\u4e0a\u7684\u95ee\u9898\uff0c\u5f88\u5feb\u5c31\u88ab\u5176\u5b83\u6d88\u606f\u6df9\u6ca1\u4e86\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6839\u636e\u5f53\u65f6\uff0c\u6211\u548c\u8fd9\u4f4d\u7f51\u53cb\u7684\u4ea4\u6d41\uff0c\u6211\u8fd9\u91cc\u6574\u7406\u4e00\u4e0b\u5173\u4e8e Spring Boot \u4e2d BindingResult \u7684\u76f8\u5173\u7528\u6cd5\uff0c\u8ba9\u5927\u5bb6\u80fd\u591f\u8f7b\u8f7b\u677e\u677e\u4ece\u5165\u95e8\u5230\u586b\u5751\uff01<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6587\u7ae0\u914d\u56fe\u53c2\u89c1<code>https:\/\/mp.weixin.qq.com\/s\/1NBmfVbjniw8M95EetNmAA<\/code>\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8bdd\u8bf4\u5728 Spring Boot \u5f00\u53d1\u4e2d\uff0c\u53c2\u6570\u6821\u9a8c\u662f\u5fc5\u4e0d\u53ef\u5c11\u7684\u4e00\u73af\u3002\u800c\u63d0\u5230\u53c2\u6570\u6821\u9a8c\uff0c\u5c31\u7ed5\u4e0d\u5f00 BindingResult \u8fd9\u4e2a\u201c\u8001\u719f\u4eba\u201d\u3002\u5b83\u770b\u4f3c\u7b80\u5355\uff0c\u5b9e\u5219\u6697\u85cf\u7384\u673a\u3002\u5f88\u591a\u5f00\u53d1\u8005\u5728\u521d\u6b21\u63a5\u89e6\u65f6\uff0c\u7ecf\u5e38\u4f1a\u9047\u5230\u5404\u79cd\u83ab\u540d\u5176\u5999\u7684\u5751\u2014\u2014\u8981\u4e48\u6821\u9a8c\u6ca1\u751f\u6548\uff0c\u8981\u4e48\u7a81\u7136\u629b\u5f02\u5e38\uff0c\u8981\u4e48\u9875\u9762\u62a5\u9519\u8bf4 BindingResult \u4e0d\u80fd\u7528\u2026\u2026<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5c24\u5176\u662f\u4e00\u4e9b\u8001\u9879\u76ee\u548c\u4e2a\u522b\u7f51\u53cb\uff0c\u975e\u5e38\u559c\u6b22 BindingResult\u3002\u4f46\u7a0d\u6709\u4e0d\u614e\uff0c\u5c31\u4f1a\u9677\u5165\u88ab BindingResult \u652f\u914d\u7684\u6050\u60e7\u4e4b\u4e2d\u3002\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c31\u6765\u5f7b\u5e95\u8bb2\u900f BindingResult \u7684\u4f5c\u7528\u3001\u4f7f\u7528\u65b9\u5f0f\u3001\u5e38\u89c1 bug \u4ee5\u53ca\u6700\u4f73\u5b9e\u8df5\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">BindingResult \u662f\u4ec0\u4e48\uff1f\u6709\u4ec0\u4e48\u4f5c\u7528\uff1f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">BindingResult \u6211\u5176\u5b9e\u7528\u7684\u5f88\u5c11\uff0c\u4e00\u65b9\u9762\u662f\u6211\u89c9\u5f97\u5b83\u4e0d\u591f\u7075\u6d3b\uff0c\u53e6\u4e00\u65b9\u9762\u662f\u5728\u4f4e\u4ee3\u7801\u7b49\u6f6e\u6d41\u7684\u5f71\u54cd\u4e0b\uff0cBindingResult \u975e\u5e38\u9e21\u808b\u3002\u867d\u8bf4\u6211\u7528\u7684\u4e0d\u591a\uff0c\u4f46\u8fd8\u662f\u6709\u4e0d\u5c11\u7f51\u53cb\u8df3\u8fdb\u5b83\u7684\u5751\u91cc\u4e86\uff0c\u4e0b\u9762\u6211\u4eec\u5c31\u4ece\u201c\u5b83\u662f\u4ec0\u4e48\uff1f\u6709\u4ec0\u4e48\u4f5c\u7528\uff1f\u201d\u8bb2\u8d77\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">BindingResult \u662f Spring \u6846\u67b6\u4e2d\u4f4d\u4e8e<code>org.springframework.validation<\/code>\u5305\u4e0b\u7684\u4e00\u4e2a\u63a5\u53e3\uff0c\u7528\u4e8e\u5c01\u88c5\u6570\u636e\u7ed1\u5b9a\u548c\u9a8c\u8bc1\u8fc7\u7a0b\u4e2d\u7684\u9519\u8bef\u4fe1\u606f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b83\u7684\u6838\u5fc3\u4f5c\u7528\u662f\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\"><li><code>\u6536\u96c6\u9a8c\u8bc1\u9519\u8bef<\/code>\uff1a\u5f53\u4f7f\u7528 <code>@Valid<\/code> \u6216 <code>@Validated<\/code> \u5bf9\u53c2\u6570\u8fdb\u884c\u6821\u9a8c\u65f6\uff0c\u5982\u679c\u6821\u9a8c\u5931\u8d25\uff0c\u9519\u8bef\u4fe1\u606f\u4f1a\u88ab\u81ea\u52a8\u5c01\u88c5\u5230 BindingResult \u5bf9\u8c61\u4e2d<\/li><li><code>\u907f\u514d\u5f02\u5e38\u629b\u51fa<\/code>\uff1a\u6b63\u5e38\u60c5\u51b5\u4e0b\uff0c\u5982\u679c\u6821\u9a8c\u5931\u8d25\u4e14\u6ca1\u6709 BindingResult\uff0cSpring MVC \u4f1a\u76f4\u63a5\u629b\u51fa<code>MethodArgumentNotValidException<\/code> \u6216 <code>BindException<\/code>\u3002\u800c\u6709\u4e86 BindingResult\uff0c\u5f02\u5e38\u4f1a\u88ab\u201c\u541e\u6389\u201d\uff0c\u8ba9\u6211\u4eec\u53ef\u4ee5\u5728\u4ee3\u7801\u4e2d\u624b\u52a8\u5904\u7406\u9519\u8bef\u3002<\/li><\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u8bf4\u767d\u4e86\uff0c<code>BindingResult \u5c31\u662f\u4e00\u4e2a\u201c\u9519\u8bef\u6536\u96c6\u5668\u201d\uff0c\u8ba9\u6211\u4eec\u80fd\u591f\u4f18\u96c5\u5730\u5904\u7406\u53c2\u6570\u6821\u9a8c\u5931\u8d25\u7684\u60c5\u51b5<\/code>\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">BindingResult \u7684\u57fa\u672c\u4f7f\u7528<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6211\u4eec\u5148\u6765\u770b\u770b\u5b83\u7684\u57fa\u7840\u7528\u6cd5\u793a\u4f8b\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b2c\u4e00\u6b65\uff0c\u5b9a\u4e49\u5b9e\u4f53\u7c7b\u5e76\u6dfb\u52a0\u6821\u9a8c\u6ce8\u89e3\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import javax.validation.constraints.NotEmpty;\nimport javax.validation.constraints.Size;\n\npublic class User {\n\n    @NotEmpty(message = \"\u7528\u6237\u540d\u4e0d\u80fd\u4e3a\u7a7a\")\n    private String name;\n\n    @Size(min = 6, max = 20, message = \"\u5bc6\u7801\u957f\u5ea6\u5fc5\u987b\u57286-20\u4f4d\u4e4b\u95f4\")\n    private String password;\n\n    \/\/ getter\/setter \u7701\u7565\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b2c\u4e8c\u6b65\uff0cController \u4e2d\u4f7f\u7528 BindingResult\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>@PostMapping(\"\/user\")\npublic String createUser(@Valid @RequestBody User user, BindingResult bindingResult) {\n    \/\/ \u5224\u65ad\u662f\u5426\u6709\u6821\u9a8c\u9519\u8bef\n    if (bindingResult.hasErrors()) {\n        \/\/ \u83b7\u53d6\u6240\u6709\u9519\u8bef\u4fe1\u606f\n        List&lt;FieldError&gt; fieldErrors = bindingResult.getFieldErrors();\n        for (FieldError error : fieldErrors) {\n            System.out.println(\"\u5b57\u6bb5\uff1a\" + error.getField() + \n                               \"\uff0c\u9519\u8bef\u4fe1\u606f\uff1a\" + error.getDefaultMessage());\n        }\n        return \"\u53c2\u6570\u6821\u9a8c\u5931\u8d25\";\n    }\n    \/\/ \u6821\u9a8c\u901a\u8fc7\uff0c\u6267\u884c\u4e1a\u52a1\u903b\u8f91\n    return \"success\";\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u901a\u8fc7\u4e0a\u9762\u7684\u4ee3\u7801\uff0c\u53ef\u4ee5\u770b\u51fa BindingResult \u7528\u8d77\u6765\u5e76\u4e0d\u96be\uff0c\u4f46\u662f\u8981\u7528\u597d\uff0c\u5c31\u7a0d\u5fae\u9700\u8981\u638c\u63e1\u4e00\u4e9b\u7ecf\u9a8c\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6838\u5fc3\u65b9\u6cd5\u8be6\u89e3<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">BindingResult \u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684 API \u6765\u83b7\u53d6\u9519\u8bef\u4fe1\u606f\u3002<\/p>\n\n\n\n<table class=\"wp-block-table\"><thead><tr><th>\u65b9\u6cd5<\/th><th>\u8bf4\u660e<\/th><\/tr><\/thead><tbody><tr><td><code>hasErrors()<\/code><\/td><td>\u5224\u65ad\u662f\u5426\u6709\u9519\u8bef<\/td><\/tr><tr><td><code>getFieldErrors()<\/code><\/td><td>\u83b7\u53d6\u6240\u6709\u5b57\u6bb5\u9519\u8bef\u5217\u8868<\/td><\/tr><tr><td><code>getFieldError(String field)<\/code><\/td><td>\u83b7\u53d6\u6307\u5b9a\u5b57\u6bb5\u7684\u9519\u8bef<\/td><\/tr><tr><td><code>getGlobalErrors()<\/code><\/td><td>\u83b7\u53d6\u5168\u5c40\u9519\u8bef\uff08\u5bf9\u8c61\u7ea7\u9519\u8bef\uff09<\/td><\/tr><tr><td><code>getAllErrors()<\/code><\/td><td>\u83b7\u53d6\u6240\u6709\u9519\u8bef<\/td><\/tr><tr><td><code>getErrorCount()<\/code><\/td><td>\u83b7\u53d6\u9519\u8bef\u603b\u6570<\/td><\/tr><\/tbody><\/table>\n\n\n\n<p class=\"wp-block-paragraph\">\u66f4\u591a\u65b9\u6cd5\u548c\u7528\u6cd5\uff0c\u53c2\u8003\u5b98\u65b9\u6587\u6863<code>https:\/\/docs.spring.io\/spring-framework\/docs\/current\/javadoc-api\/org\/springframework\/validation\/BindingResult.html<\/code>\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">@Valid \u548c BindingResult \u7684\u7ed1\u5b9a<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u91cc\u8981\u8bb0\u4f4f\u4e00\u6761\u91cd\u8981\u89c4\u5219\uff1a<code>@Valid<\/code>\u548c<code>BindingResult<\/code>\u5fc5\u987b\u4e00\u4e00\u5bf9\u5e94\uff0c\u4e14 BindingResult \u5fc5\u987b\u7d27\u8ddf\u5728\u88ab\u6821\u9a8c\u7684\u5bf9\u8c61\u540e\u9762\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u770b\u4e0b\u9762\u7684\u6848\u4f8b\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ \u6b63\u786e\uff1a\u4e00\u4e00\u5bf9\u5e94\uff0c\u987a\u5e8f\u6b63\u786e\npublic String method1(@Valid User user, BindingResult userResult,\n  @Valid Role role, BindingResult roleResult)\n\n\/\/ \u9519\u8bef\uff1a\u987a\u5e8f\u4e0d\u5bf9\uff0cuserResult \u4f1a\u63a5\u6536\u5230 role \u7684\u9519\u8bef\npublic String method2(@Valid User user, @Valid Role role, \n  BindingResult userResult)\n\n\/\/ \u9519\u8bef\uff1a\u7f3a\u5c11\u5bf9\u5e94\u7684 BindingResult\npublic String method3(@Valid User user)<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">BindingResult \u7684 6 \u5927\u5e38\u89c1\u5751<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u63a5\u4e0b\u6765\uff0c\u6211\u6c47\u603b\u4e86\u7fa4\u53cb\u8ba8\u8bba\u7684\u5e38\u89c1\u7684 6 \u4e2a\u5927\u5751\uff0c\u5927\u5bb6\u770b\u770b\u6709\u6ca1\u6709\u5165\u5751\u8fc7\u7684\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6587\u7ae0\u914d\u56fe\u53c2\u89c1<code>https:\/\/mp.weixin.qq.com\/s\/1NBmfVbjniw8M95EetNmAA<\/code>\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b2c\u4e00\u4e2a\u5751\uff0c\u5fd8\u8bb0\u52a0 @Valid \u6216 @Validated\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u75c7\u72b6\u4e3a\uff0c\u6821\u9a8c\u6ce8\u89e3\u5b8c\u5168\u4e0d\u751f\u6548\uff0c\u65e0\u8bba\u8f93\u5165\u4ec0\u4e48\u90fd\u80fd\u901a\u8fc7\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7ecf\u8fc7\u6392\u67e5\u540e\u5f97\u77e5\u539f\u56e0\u662f\uff0cBindingResult \u672c\u8eab\u53ea\u662f\u4e00\u4e2a\u5bb9\u5668\uff0c\u5b83\u9700\u8981\u914d\u5408 <code>@Valid<\/code> \u6216 <code>@Validated<\/code> \u6765\u89e6\u53d1\u6821\u9a8c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u9488\u5bf9\u8fd9\u79cd\u60c5\u51b5\u7684\u89e3\u51b3\u65b9\u6848\u662f\u786e\u4fdd\u5728\u88ab\u6821\u9a8c\u7684\u5bf9\u8c61\u524d\u52a0\u4e0a <code>@Valid<\/code> \u6216 <code>@Validated<\/code>\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ \u9519\u8bef\uff1a\u6ca1\u6709 @Valid\uff0cbindingResult \u6c38\u8fdc\u6ca1\u6709\u9519\u8bef\npublic String create(@RequestBody User user, BindingResult bindingResult)\n\n\/\/ \u6b63\u786e\npublic String create(@Valid @RequestBody User user, BindingResult bindingResult)<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b2c\u4e8c\u4e2a\u5e38\u89c1\u7684\u5751\u662f\uff0cBindingResult \u548c\u88ab\u6821\u9a8c\u5bf9\u8c61\u4e4b\u95f4\u9694\u7740\u5176\u4ed6\u53c2\u6570\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u9047\u5230\u7684\u75c7\u72b6\u662f\uff0c\u6821\u9a8c\u5931\u8d25\u65f6\u629b\u51fa <code>MethodArgumentNotValidException<\/code>\uff0c\u800c\u4e0d\u662f\u8fdb\u5165\u65b9\u6cd5\u4f53\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7a76\u5176\u539f\u56e0\uff0cSpring \u8981\u6c42 BindingResult \u5fc5\u987b\u7d27\u8ddf\u5728\u88ab\u6821\u9a8c\u5bf9\u8c61\u540e\u9762\uff0c\u4e2d\u95f4\u4e0d\u80fd\u6709\u5176\u4ed6\u53c2\u6570\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ \u9519\u8bef\uff1a\u4e2d\u95f4\u591a\u4e86 HttpServletRequest\npublic String create(@Valid User user, HttpServletRequest request, \n  BindingResult bindingResult)\n\n\/\/ \u6b63\u786e\npublic String create(@Valid User user, BindingResult bindingResult, \n  HttpServletRequest request)<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b2c\u4e09\u4e2a\u5751\u662f\u5bf9\u7b80\u5355\u7c7b\u578b\u4f7f\u7528 BindingResult\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5e38\u89c1\u7684\u75c7\u72b6\u662f\u6821\u9a8c\u6ce8\u89e3\u52a0\u5728 String\u3001Integer \u7b49\u7b80\u5355\u7c7b\u578b\u4e0a\uff0cBindingResult \u6536\u4e0d\u5230\u9519\u8bef\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u80cc\u540e\u7684\u539f\u56e0\u662f Spring MVC \u5bf9\u65b9\u6cd5\u53c2\u6570\u4f7f\u7528\u4e0d\u540c\u7684\u89e3\u6790\u5668\uff0c\u7b80\u5355\u7c7b\u578b\u7684\u53c2\u6570\u6821\u9a8c\u4e0d\u8d70 Bean Validation \u7684\u6d41\u7a0b\uff0cBindingResult \u65e0\u6cd5\u63a5\u6536\u5b83\u4eec\u7684\u6821\u9a8c\u4fe1\u606f\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ \u9519\u8bef\uff1a\u5bf9 String \u53c2\u6570\u8fdb\u884c\u6821\u9a8c\uff0cbindingResult \u6536\u4e0d\u5230\u9519\u8bef\npublic String save(@NotBlank(message = \"\u540d\u79f0\u4e0d\u80fd\u4e3a\u7a7a\") String name, \n  BindingResult bindingResult)\n\n\/\/ \u6b63\u786e\uff1a\u4f7f\u7528\u5305\u88c5\u7c7b\u6216\u5b9e\u4f53\u5bf9\u8c61\npublic String save(@Valid @RequestBody User user, BindingResult bindingResult)<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b2c 4 \u4e2a\u5751\u662f IllegalStateException\uff0cBindingResult \u548c\u666e\u901a\u76ee\u6807\u5bf9\u8c61\u90fd\u4e0d\u80fd\u7528\u4f5c\u8bf7\u6c42\u5c5e\u6027\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u662f\u793e\u533a\u91cc\u88ab\u95ee\u5f97\u6700\u591a\u7684\u5f02\u5e38\u4e4b\u4e00\uff0c\u5728 Stack Overflow <code>https:\/\/stackoverflow.com\/questions\/56596671<\/code>\u4e0a\u4e5f\u6709\u5927\u91cf\u8ba8\u8bba\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u793e\u533a\u91cc\u53cd\u9988\u7684\u75c7\u72b6\u662f\u9875\u9762\u62a5\u9519\uff0c<code>java.lang.IllegalStateException: Neither BindingResult nor plain target object for bean name 'xxx' available as request attribute<\/code>\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u80cc\u540e\u7684\u539f\u56e0\u5206\u6790\u540e\u5f97\u77e5\uff0c\u8fd9\u4e2a\u5f02\u5e38\u901a\u5e38\u51fa\u73b0\u5728\u4f7f\u7528 Spring MVC \u8868\u5355\u6807\u7b7e\uff08<code>&lt;form:form&gt;<\/code>\u3001<code>&lt;form:input&gt;<\/code> \u7b49\uff09\u65f6\u3002\u5f53\u6e32\u67d3 JSP \u6216 Thymeleaf \u9875\u9762\u65f6\uff0cSpring \u4f1a\u5728 Model \u4e2d\u67e5\u627e\u6307\u5b9a\u540d\u79f0\u7684\u5c5e\u6027\u5bf9\u8c61\uff0c\u4f46\u6ca1\u627e\u5230\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6709\u4e0b\u9762 3 \u79cd\u5e38\u89c1\u573a\u666f\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\"><li>GET \u8bf7\u6c42\u4e2d\u6ca1\u6709\u5c06\u76ee\u6807\u5bf9\u8c61\u653e\u5165 Model<\/li><li>\u8868\u5355\u7684 <code>modelAttribute<\/code> \u5c5e\u6027\u503c\u4e0e Model \u4e2d\u7684\u5c5e\u6027\u540d\u4e0d\u5339\u914d<\/li><li>\u6821\u9a8c\u5931\u8d25\u540e\uff0c\u91cd\u5b9a\u5411\u65f6\u6ca1\u6709\u4fdd\u7559\u539f\u5bf9\u8c61<\/li><\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b63\u786e\u7684\u89e3\u51b3\u65b9\u6848\u5982\u4e0b\u4ee3\u7801\u6240\u793a\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ GET \u8bf7\u6c42\uff1a\u786e\u4fdd\u5c06\u7a7a\u5bf9\u8c61\u653e\u5165 Model\n@GetMapping(\"\/user\/form\")\npublic String showForm(Model model) {\n  \/\/ \u5173\u952e\uff01\n    model.addAttribute(\"user\", new User());  \n    return \"userForm\";\n}\n\n\/\/ POST \u8bf7\u6c42\uff1a\u6821\u9a8c\u5931\u8d25\u65f6\uff0c\u8fd4\u56de\u7684\u89c6\u56fe\u4e2d\u4e5f\u8981\u6709\u8be5\u5bf9\u8c61\n@PostMapping(\"\/user\/save\")\npublic String save(@Valid @ModelAttribute(\"user\") User user, \n  BindingResult result, Model model) {\n    if (result.hasErrors()) {\n     \/\/ \u4fdd\u7559\u7528\u6237\u8f93\u5165\n        model.addAttribute(\"user\", user); \n        return \"userForm\";\n    }\n    return \"redirect:\/user\/list\";\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b2c 5 \u4e2a\u5751\u662f\uff0c\u5ffd\u7565 BindingResult \u5374\u671f\u671b\u4e0d\u629b\u5f02\u5e38\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u901a\u5e38\u662f\u65b9\u6cd5\u53c2\u6570\u4e2d\u52a0\u4e86 BindingResult \u4f46\u4ece\u672a\u4f7f\u7528\uff0c\u7ed3\u679c\u8fd8\u662f\u629b\u5f02\u5e38\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u7c7b\u95ee\u9898\u80cc\u540e\u7684\u539f\u56e0\u4e5f\u5f88\u7b80\u5355\u3002\u867d\u7136\u52a0\u4e0a\u4e86 BindingResult\uff0c\u4f46 Spring \u4ecd\u7136\u4f1a\u8fdb\u884c\u6821\u9a8c\u3002\u5982\u679c\u4ee3\u7801\u4e2d\u6ca1\u6709\u901a\u8fc7<code>hasErrors()<\/code>\u68c0\u67e5\uff0c\u5e76\u4e14\u6821\u9a8c\u5931\u8d25\uff0cSpring \u8fd8\u662f\u4f1a\u629b\u51fa\u5f02\u5e38\u5417\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b54\u6848\u662f\uff1a\u4e0d\u4f1a\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">BindingResult \u7684\u5b58\u5728\u672c\u8eab\u5c31\u544a\u8bc9 Spring \u4e0d\u8981\u629b\u5f02\u5e38\uff0c\u800c\u662f\u628a\u9519\u8bef\u653e\u5165 BindingResult\u3002\u4f46\u5982\u679c\u4e0d\u68c0\u67e5\uff0c\u9519\u8bef\u4f1a\u88ab\u5ffd\u7565\uff0c\u53ef\u80fd\u5bfc\u81f4\u6570\u636e\u7ee7\u7eed\u5904\u7406\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6240\u4ee5\uff0c\u9047\u5230\u8fd9\u7c7b\u95ee\u9898\u7684\u89e3\u51b3\u65b9\u6848\u662f\u52a1\u5fc5\u68c0\u67e5 <code>hasErrors()<\/code> \u5e76\u505a\u51fa\u76f8\u5e94\u5904\u7406\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u540e\u4e00\u4e2a\u5751\u662f\u5bf9\u5d4c\u5957\u5bf9\u8c61\u6821\u9a8c\u4e0d\u751f\u6548\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5c24\u5176\u662f\u5b9e\u4f53\u7c7b\u4e2d\u5305\u542b\u53e6\u4e00\u4e2a\u5b9e\u4f53\u5bf9\u8c61\uff0c\u4f46\u5185\u90e8\u5bf9\u8c61\u7684\u6821\u9a8c\u6ce8\u89e3\u4e0d\u751f\u6548\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u4e2a\u539f\u56e0\u662f <code>@Valid<\/code> \u4e0d\u4f1a\u81ea\u52a8\u7ea7\u8054\u6821\u9a8c\u5d4c\u5957\u5bf9\u8c61\uff0c\u9700\u8981\u5728\u5d4c\u5957\u5c5e\u6027\u4e0a\u4e5f\u52a0\u4e0a<code>@Valid<\/code>\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class Order {\n    @Valid  \/\/ \u5fc5\u987b\u52a0\u4e0a\u8fd9\u4e2a\uff01\n    private List&lt;OrderItem&gt; items;\n\n    @Valid  \/\/ \u5fc5\u987b\u52a0\u4e0a\u8fd9\u4e2a\uff01\n    private User buyer;\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u968f\u7740 Spring 7.x \u548c Spring Boot 4.x \u7684\u6d41\u884c\u3002\u73b0\u5728<code>@Valid<\/code>\u4e5f\u652f\u6301\u5957\u5a03\u4e86\u3002\u5177\u4f53\u53ef\u4ee5\u53c2\u52a0\u6211\u524d\u9762\u5199\u7684\u6587\u7ae0\u300a<a href=\"https:\/\/mp.weixin.qq.com\/s\/IAFHNDk3V3SWI3ESn9Ib_A\">https:\/\/mp.weixin.qq.com\/s\/IAFHNDk3V3SWI3ESn9Ib_A<\/a>\u300b\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">BindingResult \u6700\u4f73\u5b9e\u8df5<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6211\u8fd9\u91cc\u603b\u7ed3\u4e86 3 \u7c7b\u6700\u4f73\u5b9e\u8df5\uff0c\u4f9b\u5927\u5bb6\u53c2\u8003\uff01<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7edf\u4e00\u5f02\u5e38\u5904\u7406 vs \u624b\u52a8\u5904\u7406<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u91cc\u6574\u7406\u4e86\u4e24\u79cd\u5904\u7406\u6821\u9a8c\u9519\u8bef\u7684\u65b9\u5f0f\uff0c\u5404\u6709\u4f18\u52a3\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u65b9\u5f0f\u4e00\uff0c\u624b\u52a8\u5904\u7406\uff08\u4f7f\u7528 BindingResult\uff09\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>@PostMapping(\"\/user\")\npublic Result createUser(@Valid @RequestBody User user, \n                          BindingResult bindingResult) {\n    if (bindingResult.hasErrors()) {\n        \/\/ \u624b\u52a8\u6536\u96c6\u9519\u8bef\u4fe1\u606f\u8fd4\u56de\n        Map&lt;String, String&gt; errors = new HashMap&lt;&gt;();\n        bindingResult.getFieldErrors().forEach(error -&gt; \n            errors.put(error.getField(), error.getDefaultMessage())\n        );\n        return Result.fail(400, \"\u53c2\u6570\u6821\u9a8c\u5931\u8d25\", errors);\n    }\n    return Result.success();\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u65b9\u5f0f\u4e8c\uff0c\u7edf\u4e00\u5f02\u5e38\u5904\u7406\uff08\u4e0d\u4f7f\u7528 BindingResult\uff09\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ Controller \u4e2d\u4e0d\u52a0 BindingResult\n@PostMapping(\"\/user\")\npublic Result createUser(@Valid @RequestBody User user) {\n    return Result.success();\n}\n\n\/\/ \u7edf\u4e00\u5f02\u5e38\u5904\u7406\n@RestControllerAdvice\npublic class GlobalExceptionHandler {\n    @ExceptionHandler(MethodArgumentNotValidException.class)\n    public Result handleValidationException(MethodArgumentNotValidException ex) {\n        Map&lt;String, String&gt; errors = new HashMap&lt;&gt;();\n        ex.getBindingResult().getFieldErrors().forEach(error -&gt; \n            errors.put(error.getField(), error.getDefaultMessage())\n        );\n        return Result.fail(400, \"\u53c2\u6570\u6821\u9a8c\u5931\u8d25\", errors);\n    }\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u91cc\uff0c\u63a8\u8350\u5927\u5bb6\u4f7f\u7528<code>#\u7edf\u4e00\u5f02\u5e38\u5904\u7406<\/code>\u7684\u65b9\u5f0f\u3002\u539f\u56e0\u6709\u4e0b\u9762 3 \u6761\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Controller \u4ee3\u7801\u66f4\u7b80\u6d01\uff0c\u4e1a\u52a1\u903b\u8f91\u66f4\u6e05\u6670<\/li><li>\u9519\u8bef\u5904\u7406\u903b\u8f91\u96c6\u4e2d\uff0c\u6613\u4e8e\u7ef4\u62a4<\/li><li>\u907f\u514d\u5728\u6bcf\u4e2a\u65b9\u6cd5\u4e2d\u91cd\u590d\u7f16\u5199\u9519\u8bef\u5904\u7406\u4ee3\u7801<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u5408\u7406\u4f7f\u7528\u5206\u7ec4\u6821\u9a8c<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f53\u540c\u4e00\u4e2a\u5b9e\u4f53\u5728\u4e0d\u540c\u573a\u666f\u4e0b\u6709\u4e0d\u540c\u7684\u6821\u9a8c\u89c4\u5219\u65f6\uff0c\u63a8\u8350\u4f7f\u7528\u5206\u7ec4\u6821\u9a8c\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ \u5b9a\u4e49\u5206\u7ec4\u63a5\u53e3\npublic interface CreateGroup {}\npublic interface UpdateGroup {}\n\n\/\/ \u5b9e\u4f53\u7c7b\u4e2d\u4f7f\u7528\u5206\u7ec4\npublic class User {\n    @NotNull(message = \"ID\u4e0d\u80fd\u4e3a\u7a7a\", groups = {UpdateGroup.class})\n    private Long id;\n\n    @NotBlank(message = \"\u7528\u6237\u540d\u4e0d\u80fd\u4e3a\u7a7a\", groups = {CreateGroup.class, UpdateGroup.class})\n    private String name;\n}\n\n\/\/ Controller \u4e2d\u4f7f\u7528\n@PostMapping(\"\/user\")\npublic Result create(@Validated(CreateGroup.class) @RequestBody User user) {\n    \/\/ \u521b\u5efa\u573a\u666f\n}\n\n@PutMapping(\"\/user\")\npublic Result update(@Validated(UpdateGroup.class) @RequestBody User user) {\n    \/\/ \u66f4\u65b0\u573a\u666f\n}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u81ea\u5b9a\u4e49\u6821\u9a8c\u6ce8\u89e3<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f53\u5185\u7f6e\u6ce8\u89e3\u65e0\u6cd5\u6ee1\u8db3\u9700\u6c42\u65f6\uff0c\u53ef\u4ee5\u81ea\u5b9a\u4e49\u6821\u9a8c\u6ce8\u89e3\uff0c\u6848\u4f8b\u4ee3\u7801\u5982\u4e0b\u6240\u793a\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ \u81ea\u5b9a\u4e49\u6ce8\u89e3\n@Target({FIELD})\n@Retention(RUNTIME)\n@Constraint(validatedBy = PhoneValidator.class)\npublic @interface Phone {\n    String message() default \"\u624b\u673a\u53f7\u683c\u5f0f\u4e0d\u6b63\u786e\";\n    Class&lt;?&gt;[] groups() default {};\n    Class&lt;? extends Payload&gt;[] payload() default {};\n}\n\n\/\/ \u6821\u9a8c\u5668\u5b9e\u73b0\npublic class PhoneValidator implements ConstraintValidator&lt;Phone, String&gt; {\n    private static final Pattern PHONE_PATTERN = Pattern.compile(\"^1[3-9]\\\\d{9}$\");\n\n    @Override\n    public boolean isValid(String value, ConstraintValidatorContext context) {\n        if (value == null || value.isEmpty()) {\n            return true;  \/\/ \u7a7a\u503c\u7531 @NotBlank \u5904\u7406\n        }\n        return PHONE_PATTERN.matcher(value).matches();\n    }\n}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u6821\u9a8c\u6d88\u606f\u56fd\u9645\u5316<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u914d\u7f6e\u56fd\u9645\u5316\u6d88\u606f\uff0c\u8ba9\u9519\u8bef\u63d0\u793a\u652f\u6301\u591a\u8bed\u8a00\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u591a\u8bed\u8a00\u914d\u7f6e\u6587\u4ef6\uff0c\u5982<code>resources\/ValidationMessages.properties<\/code>\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>user.name.notempty=\u7528\u6237\u540d\u4e0d\u80fd\u4e3a\u7a7a\nuser.password.size=\u5bc6\u7801\u957f\u5ea6\u5fc5\u987b\u5728{min}-{max}\u4f4d\u4e4b\u95f4<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u7136\u540e\u5728 Java \u5b9e\u4f53\u7c7b\u4e2d\u4f7f\u7528\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class User {\n    @NotEmpty(message = \"{user.name.notempty}\")\n    private String name;\n\n    @Size(min = 6, max = 20, message = \"{user.password.size}\")\n    private String password;\n}<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u603b\u7ed3<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">BindingResult \u662f Spring Boot \u53c2\u6570\u6821\u9a8c\u4e2d\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u73af\uff0c\u7406\u89e3\u5b83\u7684\u5de5\u4f5c\u539f\u7406\u548c\u5e38\u89c1\u9677\u9631\uff0c\u80fd\u8ba9\u6211\u4eec\u7684\u4ee3\u7801\u66f4\u52a0\u5065\u58ee\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u73b0\u5728\u56de\u987e\u4e00\u4e0b\u672c\u6587\u7684\u6838\u5fc3\u8981\u70b9\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\"><li>\u57fa\u672c\u89c4\u5219\uff1a<code>@Valid<\/code>\/<code>@Validated<\/code> \u548c BindingResult \u5fc5\u987b\u4e00\u4e00\u5bf9\u5e94\uff0c\u4e14\u7d27\u6328\u7740<\/li><li>\u5e38\u89c1\u5751\u70b9\uff1a\u5fd8\u8bb0\u52a0\u6821\u9a8c\u6ce8\u89e3\u3001\u53c2\u6570\u987a\u5e8f\u9519\u8bef\u3001\u7b80\u5355\u7c7b\u578b\u6821\u9a8c\u3001\u8868\u5355\u9875\u9762\u7f3a\u5bf9\u8c61\u3001\u5d4c\u5957\u6821\u9a8c\u4e0d\u751f\u6548<\/li><li>\u6700\u4f73\u5b9e\u8df5\uff1a\u4f18\u5148\u4f7f\u7528\u7edf\u4e00\u5f02\u5e38\u5904\u7406\u3001\u5408\u7406\u8fd0\u7528\u5206\u7ec4\u6821\u9a8c\u3001\u5584\u7528\u81ea\u5b9a\u4e49\u6ce8\u89e3<\/li><\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee5\u4e0a\uff0c\u671f\u5f85\u8fd9\u7bc7\u6587\u7ae0\u80fd\u591f\u5e2e\u52a9\u5230\u90e8\u5206\u7f51\u53cb\u5728\u4f7f\u7528 BindingResult \u65f6\u5c11\u8e29\u5751\u3002\u5982\u679c\u6709\u7f51\u53cb\u9047\u5230\u8fc7\u5176\u4ed6\u6709\u8da3\u7684\u95ee\u9898\uff0c\u6b22\u8fce\u5728\u8bc4\u8bba\u533a\u7559\u8a00\u8ba8\u8bba\uff01<\/p>\n<!-- <audio autoplay=\"autoplay\" height=\"100\" width=\"100\" hidden=\"true\"><source src=\"https:\/\/c.coka.la\/orAvPR.mp3\" type=\"audio\/mp3\"\/><\/audio><img decoding=\"async\" src=\"https:\/\/images.weserv.nl\/?url=https:\/\/ws3.sinaimg.cn\/large\/8fa5dcfcgy1g4em3rzar5j20ib089ae0.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/> --><p><!-- <img decoding=\"async\" src=\"https:\/\/raw.githubusercontent.com\/xmt1139057136\/xttblog\/master\/8fa5dcfcgy1g4em3rzar5j20ib089ae0.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/>--><img decoding=\"async\" src=\"https:\/\/saas.51autoparts.cn\/api\/admin\/sys-file\/oss\/file?fileName=84db51f8561e448f9a4fda2eff0811f9.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/><\/p><p>\u6700\u540e\uff0c\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u4e2a\u4eba\u5fae\u4fe1\u516c\u4f17\u53f7\uff1a\u4e1a\u4f59\u8349\uff08yyucao\uff09\uff01<b>\u53ef\u52a0\u4f5c\u8005\u5fae\u4fe1\u53f7\uff1a<font 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id=\"bdRewardBtn\"><span><\/span><\/button><\/div> -->","protected":false},"excerpt":{"rendered":"<p>\u4e0a\u5468\u4e94\uff0c\u5fae\u4fe1\u7fa4\u91cc\u8ba8\u8bba\u7684\u70ed\u706b\u671d\u5929\uff0c\u539f\u56e0\u662f\u88ab\u6211\u7684\u4e00\u7bc7\u6587\u7ae0\u300ahttps:\/\/mp.weixin.qq.com\/s\/P [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[645,266,414,1405,946],"class_list":["post-5588","post","type-post","status-publish","format-standard","hentry","category-java","tag-gitbook","tag-java","tag-spring","tag-validator","tag-946"],"_links":{"self":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/5588","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5588"}],"version-history":[{"count":1,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/5588\/revisions"}],"predecessor-version":[{"id":5589,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/5588\/revisions\/5589"}],"wp:attachment":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5588"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5588"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5588"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}