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crmeb/src/main/java/com/exception/ApiException.java

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+package com.exception;
+
+public class ApiException extends RuntimeException{
+
+    private ExceptionHandler exceptionHandler;
+
+    public ApiException(ExceptionHandler exceptionHandler) {
+        super(exceptionHandler.getMessage());
+        this.exceptionHandler = exceptionHandler;
+    }
+
+    public ApiException(String message) {
+        super(message);
+    }
+
+    public ApiException(Throwable cause) {
+        super(cause);
+    }
+
+    public ApiException(String message, Throwable cause) {
+        super(message, cause);
+    }
+
+    public ExceptionHandler getErrorCode() {
+        return exceptionHandler;
+    }
+}

crmeb/src/main/java/com/exception/CrmebException.java

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+package com.exception;
+
+import com.common.CommonResult;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.http.HttpStatus;
+import org.springframework.validation.BindException;
+import org.springframework.validation.BindingResult;
+import org.springframework.web.bind.MethodArgumentNotValidException;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.ResponseStatus;
+import org.springframework.web.bind.annotation.RestControllerAdvice;
+
+import java.util.Objects;
+
+@Slf4j
+@RestControllerAdvice
+public class CrmebException extends RuntimeException {
+
+    private static final long serialVersionUID = 1L;
+
+    public CrmebException() {}
+
+    public CrmebException(String message) {
+        super(message);
+    }
+}

crmeb/src/main/java/com/exception/ExceptionCodeEnum.java

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+package com.exception;
+
+public enum ExceptionCodeEnum implements ExceptionHandler{
+    // 数据操作错误定义
+    SUCCESS(200, "操作成功"),
+    FAILED(500, "操作失败"),
+    PRAM_NOT_MATCH(400, "参数不正确"),
+    VALIDATE_FAILED(400, "参数检验失败"),
+    UNAUTHORIZED(401, "未登录或token过期，请登录！"),
+    FORBIDDEN(403, "没有相关权限"),
+    NOT_FOUND(404, "没有找到相关数据"),
+    ERROR(500, "系统异常"),
+    ;
+
+    private long code;
+    private String message;
+
+    private ExceptionCodeEnum(long code, String message){
+        this.code = code;
+        this.message = message;
+    }
+
+    @Override
+    public long getCode() {
+        return code;
+    }
+
+    @Override
+    public String getMessage() {
+        return message;
+    }
+}

crmeb/src/main/java/com/exception/ExceptionHandler.java

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+package com.exception;
+
+public interface ExceptionHandler {
+
+    long getCode();
+
+    String getMessage();
+}

crmeb/src/main/java/com/exception/GlobalExceptionHandler.java

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+package com.exception;
+
+import com.common.CommonResult;
+import lombok.extern.slf4j.Slf4j;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.http.HttpStatus;
+import org.springframework.validation.BindException;
+import org.springframework.validation.BindingResult;
+import org.springframework.web.HttpMediaTypeNotSupportedException;
+import org.springframework.web.bind.MethodArgumentNotValidException;
+import org.springframework.web.bind.MissingServletRequestParameterException;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.ResponseBody;
+import org.springframework.web.bind.annotation.ResponseStatus;
+import org.springframework.web.bind.annotation.RestControllerAdvice;
+
+import javax.servlet.http.HttpServletRequest;
+import java.util.Objects;
+
+@Slf4j
+@RestControllerAdvice
+public class GlobalExceptionHandler {
+//    private static final Logger logger = LoggerFactory.getLogger(GlobalExceptionHandler.class);
+
+    /**
+     * 拦截表单参数校验
+     */
+    @ResponseStatus(HttpStatus.OK)
+    @ExceptionHandler({BindException.class})
+    public CommonResult bindException(BindException e) {
+        BindingResult bindingResult = e.getBindingResult();
+        return CommonResult.failed(ExceptionCodeEnum.VALIDATE_FAILED, Objects.requireNonNull(bindingResult.getFieldError()).getDefaultMessage());
+    }
+
+    /**
+     * 拦截JSON参数校验
+     */
+    @ResponseStatus(HttpStatus.OK)
+    @ExceptionHandler(MethodArgumentNotValidException.class)
+    public CommonResult bindException(MethodArgumentNotValidException e) {
+        BindingResult bindingResult = e.getBindingResult();
+        return CommonResult.failed(ExceptionCodeEnum.VALIDATE_FAILED,Objects.requireNonNull(bindingResult.getFieldError()).getDefaultMessage());
+    }
+
+    /**
+     * 拦截参数类型不正确
+     * @param e
+     * @return
+     */
+    @ResponseStatus(HttpStatus.OK)
+    @ExceptionHandler(HttpMediaTypeNotSupportedException.class)
+    public CommonResult bindException(HttpMediaTypeNotSupportedException e){
+        return CommonResult.failed(ExceptionCodeEnum.PRAM_NOT_MATCH,Objects.requireNonNull(e.getMessage()));
+    }
+
+
+    //声明要捕获的异常
+    @ResponseStatus(HttpStatus.OK)
+    @ExceptionHandler(Exception.class)
+    @ResponseBody
+    public <T> CommonResult<?> defaultExceptionHandler(Exception e) {
+        e.printStackTrace();
+        if(e instanceof CrmebException) {
+            return CommonResult.failed(ExceptionCodeEnum.FAILED,Objects.requireNonNull(e.getMessage()));
+        }
+        if(e instanceof MissingServletRequestParameterException){
+            return CommonResult.failed(ExceptionCodeEnum.PRAM_NOT_MATCH, Objects.requireNonNull(e.getMessage()));
+        }
+        //未知错误
+        return CommonResult.failed(ExceptionCodeEnum.ERROR,e.getMessage());
+    }
+}