异常统一处理 2

清疚 2022-12-29 04:33 209阅读 0赞

## 1.pom坐标 ##

<dependency>
                <groupId>org.apache.httpcomponents</groupId>
                <artifactId>httpcore</artifactId>
                <version>4.4.12</version>
            </dependency>

## 2 .控制代码 ##

#### 2.1 异常处理方式 ####

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3h1ZWd1Y2hlbg_size_16_color_FFFFFF_t_70]

#### 2.2 异常统一处理类 ####

package com.example.common;
    
    import lombok.extern.slf4j.Slf4j;
    import org.springframework.web.bind.annotation.ExceptionHandler;
    import org.springframework.web.bind.annotation.RestControllerAdvice;
    
    /** * 描述: * ExceptionControllerAdvice *处理所有异常 * @author XueGuCheng * @create 2020-12-19 20:01 */
    @Slf4j
    @RestControllerAdvice(basePackages = "com.example.controller")
    public class DemoExceptionControllerAdvice { 
    
    	//测试，捕获除0异常
    	//捕获顺序是从上到下的，前面的都匹配不上，最后才会到Throwable异常处理方法
        @ExceptionHandler(value = ArithmeticException.class)
        public ResultResponse handleArithmeticException(ArithmeticException arithmeticException){ 
            log.error("错误信息：",arithmeticException);
            //业务处理...
            return ResultResponse.error(500,"除零异常");
        }
    
        @ExceptionHandler(value = Throwable.class)
        public ResultResponse handleException(Throwable throwable){ 
            log.error("错误信息：",throwable);
            //业务处理...
            return ResultResponse.error(500,"未知异常");
        }
    }

#### 2.3 测试 ####

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3h1ZWd1Y2hlbg_size_16_color_FFFFFF_t_70 1]

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