\u6ca1\u6709\u7edf\u4e00\u5f02\u5e38\u5904\u7406\u65f6\uff0cController \u91cc\u5230\u5904\u662f try-catch\uff0c\u524d\u7aef\u62ff\u5230\u7684\u9519\u8bef\u683c\u5f0f\u4e94\u82b1\u516b\u95e8\uff1a\u6709\u7684\u8fd4\u56de\u5b57\u7b26\u4e32\uff0c\u6709\u7684\u8fd4\u56de 500 \u88f8\u5f02\u5e38\uff0c\u6709\u7684\u628a\u5806\u6808\u76f4\u63a5\u629b\u7ed9\u7528\u6237\u3002Spring Boot \u7528 \u81ea\u5b9a\u4e49\u5f02\u5e38\u643a\u5e26\u4e1a\u52a1\u7801\uff1a<\/p>\n Controller \u91cc\u76f4\u63a5\u629b\uff0c\u4e0d\u7528\u81ea\u5df1\u5305\uff1a<\/p>\n \u7edf\u4e00\u5f02\u5e38\u5904\u7406\u7684\u6838\u5fc3\u5c31\u4e00\u53e5\u8bdd\uff1a\u5f02\u5e38\u5728\u4e00\u5904\u6536\u53e3\uff0c\u8fd4\u56de\u683c\u5f0f\u53ea\u6709\u4e00\u79cd<\/strong>\u3002\u914d\u5408 \u7528 @RestControllerAdvice + \u7edf\u4e00 Result \u4f53\uff0c\u628a\u5f02\u5e38\u548c\u8fd4\u56de\u7ed3\u6784\u4e00\u6b21\u6027\u6536\u62e2\uff0c\u524d\u540e\u7aef\u5bf9\u63a5\u66f4\u7701\u5fc3\u3002<\/p>\n","protected":false},"author":2,"featured_media":114,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[],"class_list":["post-125","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-java-dev"],"_links":{"self":[{"href":"https:\/\/fsdata.site\/index.php?rest_route=\/wp\/v2\/posts\/125","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fsdata.site\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fsdata.site\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fsdata.site\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/fsdata.site\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=125"}],"version-history":[{"count":0,"href":"https:\/\/fsdata.site\/index.php?rest_route=\/wp\/v2\/posts\/125\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/fsdata.site\/index.php?rest_route=\/wp\/v2\/media\/114"}],"wp:attachment":[{"href":"https:\/\/fsdata.site\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=125"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fsdata.site\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=125"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fsdata.site\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=125"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}@RestControllerAdvice<\/code> + @ExceptionHandler<\/code> \u53ef\u4ee5\u628a\u5f02\u5e38\u5728\u4e00\u5904\u6536\u53e3\uff0c\u518d\u914d\u5408\u7edf\u4e00\u8fd4\u56de\u4f53\uff0c\u524d\u540e\u7aef\u5bf9\u63a5\u4f1a\u6e05\u723d\u5f88\u591a\u3002<\/p>\n\u4e00\u3001\u5148\u5b9a\u4e49\u7edf\u4e00\u8fd4\u56de\u7ed3\u6784<\/h2>\n
public class Result<T> {\n private int code;\n private String msg;\n private T data;\n\n public static <T> Result<T> ok(T data) {\n Result<T> r = new Result<>();\n r.code = 0; r.msg = \"success\"; r.data = data;\n return r;\n }\n public static Result<?> fail(int code, String msg) {\n Result<?> r = new Result<>();\n r.code = code; r.msg = msg;\n return r;\n }\n \/\/ getter\/setter \u7701\u7565\n}\n<\/code><\/pre>\n\u4e8c\u3001\u5168\u5c40\u5f02\u5e38\u5904\u7406\u5668<\/h2>\n
@RestControllerAdvice\npublic class GlobalExceptionHandler {\n\n \/\/ \u4e1a\u52a1\u5f02\u5e38\n @ExceptionHandler(BusinessException.class)\n public Result<?> handleBiz(BusinessException e) {\n return Result.fail(e.getCode(), e.getMessage());\n }\n\n \/\/ \u53c2\u6570\u6821\u9a8c\u5931\u8d25\n @ExceptionHandler(MethodArgumentNotValidException.class)\n public Result<?> handleValid(MethodArgumentNotValidException e) {\n String msg = e.getBindingResult().getFieldError().getDefaultMessage();\n return Result.fail(400, msg);\n }\n\n \/\/ \u515c\u5e95\uff1a\u672a\u77e5\u5f02\u5e38\n @ExceptionHandler(Exception.class)\n public Result<?> handleOther(Exception e) {\n \/\/ \u751f\u4ea7\u73af\u5883\u4e0d\u8981\u66b4\u9732\u5806\u6808\n return Result.fail(500, \"\u7cfb\u7edf\u5f02\u5e38\uff0c\u8bf7\u7a0d\u540e\u91cd\u8bd5\");\n }\n}\n<\/code><\/pre>\n\u4e09\u3001\u4e1a\u52a1\u5f02\u5e38\u4e0e\u6821\u9a8c<\/h2>\n
public class BusinessException extends RuntimeException {\n private int code;\n public BusinessException(int code, String msg) {\n super(msg); this.code = code;\n }\n \/\/ getter\n}\n<\/code><\/pre>\n@PostMapping(\"\/order\")\npublic Result<Order> create(@Valid @RequestBody CreateOrderReq req) {\n if (req.getCount() <= 0)\n throw new BusinessException(1001, \"\u8d2d\u4e70\u6570\u91cf\u5fc5\u987b\u5927\u4e8e0\");\n return Result.ok(orderService.create(req));\n}\n<\/code><\/pre>\n@Valid<\/code> \u89e6\u53d1 Bean Validation\uff0c\u6821\u9a8c\u5931\u8d25\u81ea\u52a8\u8fdb MethodArgumentNotValidException<\/code>\uff0c\u8fd4\u56de\u5b57\u6bb5\u7ea7\u7684\u53cb\u597d\u63d0\u793a\u3002<\/p>\n\u56db\u3001\u51e0\u4e2a\u6ce8\u610f\u70b9<\/h2>\n
\n
Filter<\/code>\/Interceptor<\/code> \u91cc\u629b\u7684\u5f02\u5e38\uff0c@RestControllerAdvice<\/code> \u62e6\u4e0d\u5230\uff0c\u9700\u8981\u5728 Filter \u5c42\u5355\u72ec\u5904\u7406\u3002<\/li>\n<\/ul>\n\u5c0f\u7ed3<\/h2>\n
Result<T><\/code> \u548c\u5206\u5c42\u5f02\u5e38\uff0c\u524d\u7aef\u518d\u4e5f\u4e0d\u7528\u5199\u4e00\u5806 if \u5224\u65ad\u9519\u8bef\u7ed3\u6784\uff0c\u8054\u8c03\u6548\u7387\u76f4\u63a5\u7ffb\u500d\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"