fix: 统一 Web 异常的 HTTP 错误语义

- 支持业务异常声明 HTTP 状态、业务错误码与原始根因 - 规范参数错误、框架异常和未知异常的安全响应
2026-07-17 19:54:27 +08:00
parent 1e6158be77
commit ba21f861f4
6 changed files with 410 additions and 32 deletions
--- a/easyflow-commons/easyflow-common-web/pom.xml
+++ b/easyflow-commons/easyflow-common-web/pom.xml
@@ -72,6 +72,19 @@
            <artifactId>jakarta.validation-api</artifactId>
        </dependency>

+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <version>${spring-boot.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>${junit.version}</version>
+            <scope>test</scope>
+        </dependency>
+
    </dependencies>

 </project>
--- a/easyflow-commons/easyflow-common-web/src/main/java/tech/easyflow/common/web/error/GlobalErrorResolver.java
+++ b/easyflow-commons/easyflow-common-web/src/main/java/tech/easyflow/common/web/error/GlobalErrorResolver.java
@@ -1,53 +1,141 @@
 package tech.easyflow.common.web.error;

+import cn.dev33.satoken.exception.NotLoginException;
+import cn.dev33.satoken.exception.NotPermissionException;
+import cn.dev33.satoken.exception.NotRoleException;
 import com.alibaba.fastjson.JSON;
 import com.alibaba.fastjson.JSONObject;
 import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;
-import tech.easyflow.common.domain.Result;
-import cn.dev33.satoken.exception.NotLoginException;
-import cn.dev33.satoken.exception.NotPermissionException;
-import cn.dev33.satoken.exception.NotRoleException;
+import jakarta.validation.ConstraintViolationException;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import org.springframework.core.annotation.AnnotatedElementUtils;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.HttpStatusCode;
+import org.springframework.web.ErrorResponse;
+import org.springframework.web.bind.MethodArgumentNotValidException;
 import org.springframework.web.bind.MissingServletRequestParameterException;
+import org.springframework.web.bind.annotation.ResponseStatus;
+import org.springframework.web.method.annotation.MethodArgumentTypeMismatchException;
+import org.springframework.web.multipart.MaxUploadSizeExceededException;
+import org.springframework.web.server.ResponseStatusException;
 import org.springframework.web.servlet.HandlerExceptionResolver;
 import org.springframework.web.servlet.ModelAndView;
-import jakarta.validation.ConstraintViolationException;
+import tech.easyflow.common.domain.Result;
 import tech.easyflow.common.web.exceptions.BusinessException;

+/**
+ * 将 Web 层异常转换为具有真实 HTTP 语义的统一 JSON 响应。
+ */
 public class GlobalErrorResolver implements HandlerExceptionResolver {

    private static final Logger LOG = LoggerFactory.getLogger(GlobalErrorResolver.class);
+    private static final String INTERNAL_ERROR_MESSAGE = "服务暂时不可用，请稍后重试";

+    /**
+     * 解析控制器异常并写入 HTTP 状态和统一错误体。
+     *
+     * @param request 当前请求
+     * @param response 当前响应
+     * @param handler 发生异常的处理器
+     * @param ex 原始异常
+     * @return JSON 视图
+     */
    @Override
    public ModelAndView resolveException(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) {
-        ex.printStackTrace();
        Result<?> error;
        if (ex instanceof MissingServletRequestParameterException) {
-            error = Result.fail(1, ((MissingServletRequestParameterException) ex).getParameterName() + " 不能为空.");
+            response.setStatus(HttpStatus.BAD_REQUEST.value());
+            error = Result.fail(400, ((MissingServletRequestParameterException) ex).getParameterName() + " 不能为空");
        } else if (ex instanceof NotLoginException) {
-            response.setStatus(401);
+            response.setStatus(HttpStatus.UNAUTHORIZED.value());
            error = Result.fail(401, "请登录");
        } else if (ex instanceof NotPermissionException || ex instanceof NotRoleException) {
-            error = Result.fail(4010, "无权操作");
-        } else if (ex instanceof ConstraintViolationException) {
+            response.setStatus(HttpStatus.FORBIDDEN.value());
+            error = Result.fail(403, "无权操作");
+        } else if (ex instanceof ConstraintViolationException || ex instanceof MethodArgumentNotValidException) {
+            response.setStatus(HttpStatus.BAD_REQUEST.value());
            error = Result.fail(400, ex.getMessage());
-        } else if (ex instanceof BusinessException) {
-            String message = ex.getMessage();
-            if (message != null && message.matches("^\\d{4,}:.+$")) {
-                int delimiterIndex = message.indexOf(':');
-                int errorCode = Integer.parseInt(message.substring(0, delimiterIndex));
-                error = Result.fail(errorCode, message.substring(delimiterIndex + 1));
-            } else {
-                error = Result.fail(1, message);
+        } else if (ex instanceof MethodArgumentTypeMismatchException) {
+            response.setStatus(HttpStatus.BAD_REQUEST.value());
+            error = Result.fail(400, "请求参数格式不正确");
+        } else if (ex instanceof MaxUploadSizeExceededException) {
+            response.setStatus(HttpStatus.PAYLOAD_TOO_LARGE.value());
+            error = Result.fail(413, "上传文件超过大小限制");
+        } else if (ex instanceof BusinessException businessException) {
+            response.setStatus(businessException.getHttpStatus());
+            if (businessException.getHttpStatus() >= 500) {
+                LOG.error("服务端业务处理异常，method={}, uri={}, errorCode={}",
+                        request.getMethod(), request.getRequestURI(), businessException.getErrorCode(), businessException);
            }
+            error = Result.fail(businessException.getErrorCode(), businessException.getMessage());
+        } else if (ex instanceof ResponseStatusException responseStatusException) {
+            response.setStatus(responseStatusException.getStatusCode().value());
+            error = Result.fail(responseStatusException.getStatusCode().value(), safeReason(responseStatusException));
+        } else if (ex instanceof ErrorResponse errorResponse) {
+            HttpStatusCode statusCode = errorResponse.getStatusCode();
+            response.setStatus(statusCode.value());
+            error = Result.fail(statusCode.value(), safeClientMessage(ex, statusCode));
        } else {
-            LOG.error(ex.toString(), ex);
-            error = Result.fail(1, "错误信息：" + ex.getMessage());
+            ResponseStatus responseStatus = AnnotatedElementUtils.findMergedAnnotation(ex.getClass(), ResponseStatus.class);
+            if (responseStatus != null) {
+                int status = resolveResponseStatus(responseStatus);
+                response.setStatus(status);
+                error = Result.fail(status, responseStatus.reason().isBlank()
+                        ? safeClientMessage(ex, HttpStatusCode.valueOf(status)) : responseStatus.reason());
+            } else {
+                response.setStatus(HttpStatus.INTERNAL_SERVER_ERROR.value());
+                LOG.error("未处理的 Web 请求异常，method={}, uri={}", request.getMethod(), request.getRequestURI(), ex);
+                error = Result.fail(500, INTERNAL_ERROR_MESSAGE);
+            }
        }
        JSONObject object = JSON.parseObject(JSON.toJSONString(error));
        return new ModelAndView(new JakartaJsonView())
                .addAllObjects(object);
    }
+
+    /**
+     * 读取注解声明的 HTTP 状态。
+     *
+     * @param responseStatus 状态注解
+     * @return HTTP 状态码
+     */
+    private int resolveResponseStatus(ResponseStatus responseStatus) {
+        return responseStatus.code().value();
+    }
+
+    /**
+     * 返回框架状态异常中可公开的错误原因。
+     *
+     * @param exception 状态异常
+     * @return 安全客户端消息
+     */
+    private String safeReason(ResponseStatusException exception) {
+        if (exception.getStatusCode().is5xxServerError()) {
+            LOG.error("Web 请求处理失败，status={}", exception.getStatusCode().value(), exception);
+            return INTERNAL_ERROR_MESSAGE;
+        }
+        if (exception.getReason() != null && !exception.getReason().isBlank()) {
+            return exception.getReason();
+        }
+        HttpStatus status = HttpStatus.resolve(exception.getStatusCode().value());
+        return status == null ? "请求处理失败" : status.getReasonPhrase();
+    }
+
+    /**
+     * 根据状态码选择可公开消息，并记录服务端异常。
+     *
+     * @param exception 原始异常
+     * @param statusCode HTTP 状态
+     * @return 安全客户端消息
+     */
+    private String safeClientMessage(Exception exception, HttpStatusCode statusCode) {
+        if (statusCode.is5xxServerError()) {
+            LOG.error("Web 请求处理失败，status={}", statusCode.value(), exception);
+            return INTERNAL_ERROR_MESSAGE;
+        }
+        String message = exception.getMessage();
+        return message == null || message.isBlank() ? "请求处理失败" : message;
+    }
 }
--- a/easyflow-commons/easyflow-common-web/src/main/java/tech/easyflow/common/web/exceptions/BusinessException.java
+++ b/easyflow-commons/easyflow-common-web/src/main/java/tech/easyflow/common/web/exceptions/BusinessException.java
@@ -1,14 +1,92 @@
 package tech.easyflow.common.web.exceptions;

 /**
- * 业务报错
+ * 可安全返回给客户端的业务异常。
+ *
+ * <p>业务异常默认使用 HTTP 400。需要表达冲突、无权限、资源不存在等语义时，
+ * 调用方应通过带状态码的构造函数显式指定 HTTP 状态和稳定业务错误码。</p>
 */
 public class BusinessException extends RuntimeException {

+    private static final long serialVersionUID = 1L;
+
+    private final int httpStatus;
+    private final int errorCode;
+
+    /**
+     * 创建默认的 HTTP 400 业务异常。
+     */
    public BusinessException() {
+        this(400, 1, "请求处理失败");
    }

+    /**
+     * 创建默认的 HTTP 400 业务异常。
+     *
+     * @param msg 可安全展示给客户端的错误消息
+     */
    public BusinessException(String msg) {
-        super(msg);
+        this(400, 1, msg);
+    }
+
+    /**
+     * 创建带 HTTP 状态和业务错误码的业务异常。
+     *
+     * @param httpStatus HTTP 状态码，必须为 400 到 599
+     * @param errorCode 稳定业务错误码，不能为成功码 0
+     * @param msg 可安全展示给客户端的错误消息
+     * @throws IllegalArgumentException 状态码或业务错误码不合法时抛出
+     */
+    public BusinessException(int httpStatus, int errorCode, String msg) {
+        this(httpStatus, errorCode, msg, null);
+    }
+
+    /**
+     * 创建带 HTTP 状态、业务错误码和根因的业务异常。
+     *
+     * @param httpStatus HTTP 状态码，必须为 400 到 599
+     * @param errorCode 稳定业务错误码，不能为成功码 0
+     * @param msg 可安全展示给客户端的错误消息
+     * @param cause 原始失败根因
+     * @throws IllegalArgumentException 状态码或业务错误码不合法时抛出
+     */
+    public BusinessException(int httpStatus, int errorCode, String msg, Throwable cause) {
+        super(requireMessage(msg), cause);
+        if (httpStatus < 400 || httpStatus > 599) {
+            throw new IllegalArgumentException("HTTP 状态码必须位于 400 到 599 之间");
+        }
+        if (errorCode == 0) {
+            throw new IllegalArgumentException("业务错误码不能为成功码 0");
+        }
+        this.httpStatus = httpStatus;
+        this.errorCode = errorCode;
+    }
+
+    /**
+     * 获取应返回的 HTTP 状态码。
+     *
+     * @return HTTP 状态码
+     */
+    public int getHttpStatus() {
+        return httpStatus;
+    }
+
+    /**
+     * 获取稳定业务错误码。
+     *
+     * @return 业务错误码
+     */
+    public int getErrorCode() {
+        return errorCode;
+    }
+
+    /**
+     * 归一化可安全返回给客户端的错误消息。
+     *
+     * @param message 原始消息
+     * @return 非空安全消息
+     */
+    private static String requireMessage(String message) {
+        return message == null || message.isBlank() ? "请求处理失败" : message;
    }
 }
--- a/easyflow-commons/easyflow-common-web/src/main/java/tech/easyflow/common/web/jsonbody/JsonBodyArgumentResolver.java
+++ b/easyflow-commons/easyflow-common-web/src/main/java/tech/easyflow/common/web/jsonbody/JsonBodyArgumentResolver.java
@@ -1,9 +1,8 @@
 package tech.easyflow.common.web.jsonbody;

-import jakarta.servlet.http.HttpServletRequest;
-import tech.easyflow.common.util.RequestUtil;
 import com.mybatisflex.core.util.ConvertUtil;
 import com.mybatisflex.core.util.StringUtil;
+import jakarta.servlet.http.HttpServletRequest;
 import org.springframework.beans.factory.SmartInitializingSingleton;
 import org.springframework.core.MethodParameter;
 import org.springframework.stereotype.Component;
@@ -12,6 +11,8 @@ import org.springframework.web.context.request.NativeWebRequest;
 import org.springframework.web.method.support.HandlerMethodArgumentResolver;
 import org.springframework.web.method.support.ModelAndViewContainer;
 import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter;
+import tech.easyflow.common.util.RequestUtil;
+import tech.easyflow.common.web.exceptions.BusinessException;

 import java.lang.reflect.Type;
 import java.lang.reflect.TypeVariable;
@@ -19,16 +20,26 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.Objects;

+/**
+ * 将带 {@link JsonBody} 注解的方法参数从共享 JSON 请求体中解析出来。
+ */
@Component
 public class JsonBodyArgumentResolver implements HandlerMethodArgumentResolver, SmartInitializingSingleton {

-    private RequestMappingHandlerAdapter requestMappingHandlerAdapter;
-
+    private final RequestMappingHandlerAdapter requestMappingHandlerAdapter;

+    /**
+     * 创建 JSON 请求体参数解析器。
+     *
+     * @param requestMappingHandlerAdapter Spring MVC 处理器适配器
+     */
    public JsonBodyArgumentResolver(RequestMappingHandlerAdapter requestMappingHandlerAdapter) {
        this.requestMappingHandlerAdapter = requestMappingHandlerAdapter;
    }

+    /**
+     * {@inheritDoc}
+     */
    @Override
    public void afterSingletonsInstantiated() {
        List<HandlerMethodArgumentResolver> argumentResolvers = requestMappingHandlerAdapter.getArgumentResolvers();
@@ -37,13 +48,17 @@ public class JsonBodyArgumentResolver implements HandlerMethodArgumentResolver,
        requestMappingHandlerAdapter.setArgumentResolvers(resolvers);
    }

-
+    /**
+     * {@inheritDoc}
+     */
    @Override
    public boolean supportsParameter(MethodParameter parameter) {
        return parameter.hasParameterAnnotation(JsonBody.class);
    }

-
+    /**
+     * {@inheritDoc}
+     */
    @Override
    public Object resolveArgument(MethodParameter parameter, ModelAndViewContainer mavContainer
            , NativeWebRequest webRequest, WebDataBinderFactory binderFactory) {
@@ -56,8 +71,6 @@ public class JsonBodyArgumentResolver implements HandlerMethodArgumentResolver,
            return null;
        }

-        Object jsonObjectOrArray = RequestUtil.readJsonObjectOrArray(request);
-
        Object result = null;
        Type paraType = parameter.getGenericParameterType();
        if (paraType instanceof TypeVariable) {
@@ -69,12 +82,13 @@ public class JsonBodyArgumentResolver implements HandlerMethodArgumentResolver,
            }
        }
        try {
+            Object jsonObjectOrArray = RequestUtil.readJsonObjectOrArray(request);
            result = JsonBodyParser.parseJsonBody(jsonObjectOrArray, paraClass, paraType, jsonBody.value());
        } catch (Exception e) {
            if (jsonBody.skipConvertError()) {
                //ignore
            } else {
-                throw new IllegalArgumentException(e.getMessage(), e);
+                throw new BusinessException(400, 400, "请求参数格式不正确", e);
            }
        }

@@ -83,7 +97,8 @@ public class JsonBodyArgumentResolver implements HandlerMethodArgumentResolver,
        }

        if ((result == null) && jsonBody.required()) {
-            throw new IllegalArgumentException(jsonBody.value() + " must not be null or blank");
+            String field = StringUtil.hasText(jsonBody.value()) ? jsonBody.value() : "请求体";
+            throw new BusinessException(400, 400, field + " 不能为空");
        }

        return result;
--- a/easyflow-commons/easyflow-common-web/src/test/java/tech/easyflow/common/web/error/GlobalErrorResolverTest.java
+++ b/easyflow-commons/easyflow-common-web/src/test/java/tech/easyflow/common/web/error/GlobalErrorResolverTest.java
@@ -0,0 +1,128 @@
+package tech.easyflow.common.web.error;
+
+import org.junit.Test;
+import org.springframework.core.MethodParameter;
+import org.springframework.http.HttpStatus;
+import org.springframework.mock.web.MockHttpServletRequest;
+import org.springframework.mock.web.MockHttpServletResponse;
+import org.springframework.web.bind.annotation.ResponseStatus;
+import org.springframework.web.method.annotation.MethodArgumentTypeMismatchException;
+import org.springframework.web.server.ResponseStatusException;
+import org.springframework.web.servlet.ModelAndView;
+import tech.easyflow.common.web.exceptions.BusinessException;
+
+import java.math.BigInteger;
+
+import static org.junit.Assert.assertEquals;
+
+/**
+ * {@link GlobalErrorResolver} HTTP 状态与安全错误体回归测试。
+ */
+public class GlobalErrorResolverTest {
+
+    private final GlobalErrorResolver resolver = new GlobalErrorResolver();
+
+    /**
+     * 验证业务冲突不会被包装为 HTTP 200。
+     */
+    @Test
+    public void shouldPreserveBusinessHttpStatusAndErrorCode() {
+        Resolution resolution = resolve(new BusinessException(409, 4091, "文件版本冲突"));
+
+        assertEquals(409, resolution.response.getStatus());
+        assertEquals(4091, resolution.modelAndView.getModel().get("errorCode"));
+        assertEquals("文件版本冲突", resolution.modelAndView.getModel().get("message"));
+    }
+
+    /**
+     * 验证 Spring 标准状态异常保留 4xx 语义和安全原因。
+     */
+    @Test
+    public void shouldPreserveResponseStatusException() {
+        Resolution resolution = resolve(new ResponseStatusException(HttpStatus.NOT_FOUND, "Skill 不存在"));
+
+        assertEquals(404, resolution.response.getStatus());
+        assertEquals(404, resolution.modelAndView.getModel().get("errorCode"));
+        assertEquals("Skill 不存在", resolution.modelAndView.getModel().get("message"));
+    }
+
+    /**
+     * 验证框架级 5xx 异常不会向客户端泄露 reason。
+     */
+    @Test
+    public void shouldHideResponseStatusServerErrorReason() {
+        Resolution resolution = resolve(new ResponseStatusException(
+                HttpStatus.INTERNAL_SERVER_ERROR, "database-secret-detail"));
+
+        assertEquals(500, resolution.response.getStatus());
+        assertEquals(500, resolution.modelAndView.getModel().get("errorCode"));
+        assertEquals("服务暂时不可用，请稍后重试", resolution.modelAndView.getModel().get("message"));
+    }
+
+    /**
+     * 验证注解声明的 HTTP 状态不会被统一异常处理覆盖。
+     */
+    @Test
+    public void shouldPreserveAnnotatedResponseStatus() {
+        Resolution resolution = resolve(new AnnotatedConflictException());
+
+        assertEquals(409, resolution.response.getStatus());
+        assertEquals("状态冲突", resolution.modelAndView.getModel().get("message"));
+    }
+
+    /**
+     * 验证未知异常返回真实 500，且不会向客户端泄露内部异常信息。
+     */
+    @Test
+    public void shouldHideUnexpectedExceptionDetails() {
+        Resolution resolution = resolve(new IllegalStateException("database-secret-detail"));
+
+        assertEquals(500, resolution.response.getStatus());
+        assertEquals(500, resolution.modelAndView.getModel().get("errorCode"));
+        assertEquals("服务暂时不可用，请稍后重试", resolution.modelAndView.getModel().get("message"));
+    }
+
+    /**
+     * 验证请求参数类型错误返回安全的 HTTP 400。
+     *
+     * @throws Exception 构造反射参数失败
+     */
+    @Test
+    public void shouldReturnSafeBadRequestForTypeMismatch() throws Exception {
+        MethodParameter parameter = new MethodParameter(
+                GlobalErrorResolverTest.class.getDeclaredMethod("sampleParameter", BigInteger.class), 0);
+        MethodArgumentTypeMismatchException exception = new MethodArgumentTypeMismatchException(
+                "not-an-id", BigInteger.class, "id", parameter,
+                new NumberFormatException("sensitive-converter-detail"));
+
+        Resolution resolution = resolve(exception);
+
+        assertEquals(400, resolution.response.getStatus());
+        assertEquals(400, resolution.modelAndView.getModel().get("errorCode"));
+        assertEquals("请求参数格式不正确", resolution.modelAndView.getModel().get("message"));
+    }
+
+    /**
+     * 提供反射参数签名。
+     *
+     * @param id 示例 ID
+     */
+    private static void sampleParameter(BigInteger id) {
+        // 仅用于构造 Spring MethodParameter 测试数据。
+    }
+
+    private Resolution resolve(Exception exception) {
+        MockHttpServletRequest request = new MockHttpServletRequest("POST", "/api/v1/skill/file/save");
+        MockHttpServletResponse response = new MockHttpServletResponse();
+        ModelAndView modelAndView = resolver.resolveException(request, response, this, exception);
+        return new Resolution(response, modelAndView);
+    }
+
+    @ResponseStatus(code = HttpStatus.CONFLICT, reason = "状态冲突")
+    private static final class AnnotatedConflictException extends RuntimeException {
+        private static final long serialVersionUID = 1L;
+    }
+
+    private record Resolution(MockHttpServletResponse response, ModelAndView modelAndView) {
+    }
+}
--- a/easyflow-commons/easyflow-common-web/src/test/java/tech/easyflow/common/web/jsonbody/JsonBodyArgumentResolverTest.java
+++ b/easyflow-commons/easyflow-common-web/src/test/java/tech/easyflow/common/web/jsonbody/JsonBodyArgumentResolverTest.java
@@ -0,0 +1,56 @@
+package tech.easyflow.common.web.jsonbody;
+
+import org.junit.Test;
+import org.springframework.core.MethodParameter;
+import org.springframework.mock.web.MockHttpServletRequest;
+import org.springframework.web.context.request.ServletWebRequest;
+import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter;
+import tech.easyflow.common.web.exceptions.BusinessException;
+
+import java.lang.reflect.Method;
+import java.nio.charset.StandardCharsets;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertThrows;
+
+/**
+ * {@link JsonBodyArgumentResolver} 请求体错误语义回归测试。
+ */
+public class JsonBodyArgumentResolverTest {
+
+    /**
+     * 验证畸形 JSON 返回安全的 HTTP 400 业务异常。
+     *
+     * @throws Exception 构造反射参数失败时抛出
+     */
+    @Test
+    public void shouldRejectMalformedJsonAsBadRequest() throws Exception {
+        RequestMappingHandlerAdapter adapter = new RequestMappingHandlerAdapter();
+        JsonBodyArgumentResolver resolver = new JsonBodyArgumentResolver(adapter);
+        Method method = JsonBodyArgumentResolverTest.class.getDeclaredMethod("sampleBody", SampleRequest.class);
+        MethodParameter parameter = new MethodParameter(method, 0);
+        MockHttpServletRequest request = new MockHttpServletRequest("POST", "/api/v1/skill/update");
+        request.setContentType("application/json");
+        request.setCharacterEncoding(StandardCharsets.UTF_8.name());
+        request.setContent("{\"name\":".getBytes(StandardCharsets.UTF_8));
+
+        BusinessException exception = assertThrows(BusinessException.class,
+                () -> resolver.resolveArgument(parameter, null, new ServletWebRequest(request), null));
+
+        assertEquals(400, exception.getHttpStatus());
+        assertEquals(400, exception.getErrorCode());
+        assertEquals("请求参数格式不正确", exception.getMessage());
+    }
+
+    /**
+     * 提供反射参数签名。
+     *
+     * @param request 示例请求
+     */
+    private static void sampleBody(@JsonBody(skipConvertError = false) SampleRequest request) {
+        // 仅用于构造 MethodParameter。
+    }
+
+    private record SampleRequest(String name) {
+    }
+}