企业级实战！Springboot集成自定义异常类，被裁半年考入编制内月薪6K

        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
        <version>1.16.18</version>
        <scope>provided</scope>
    </dependency>
</dependencies>


**2.2 使用枚举自定义异常类消息**

@Author lsc
@Description 异常消息
@Date 2019/10/9 20:28
@Param
@returnbr/>**/
@AllArgsConstructor//全参构造
@NoArgsConstructor//空参构造
public enum CodeMsg {

SUCESS(200,"sucess"),
SERVER_ERROR(500,"服务端异常"),
Request_Error(404,"请求异常");

// 错误消息码
private Integer code;
// 错误消息提示
private String msg;

public Integer getCode() {
return code;
}

public void setCode(Integer code) {
this.code = code;
}

public String getMsg() {
return msg;
}

public void setMsg(String msg) {
this.msg = msg;
}
}


**2.3 使用自定义异常集成RuntimeException**

/**

@Author lsc
@Description 自定义通用异常
@Date 2019/10/9 20:39
@Version 1.0
*/

@NoArgsConstructor br/>@AllArgsConstructor
@Data
public class CommonException extends RuntimeException {

// 序列化号
private static final long serialVersionUID = 132719492019L;

// 引入自定义异常消息
private CodeMsg codeMsg;

}


**2.4 编写页面返回实体类**

/**

@Author lsc
@Description 返回的页面
@Date 2019/10/9 20:35
@Version 1.0
*/

@Data//set get 等方法 br/>@AllArgsConstructor
@NoArgsConstructor
public class ResultPage<T> {

// 状态码
private Integer code;
// 消息提示
private String msg;
// 存放的数据
private T data;

ResultPage(Integer code,String msg) {
    this.code=code;
    this.msg=msg;
    this.data=data;
}

// 成功的时候调用
public static <T> ResultPage<T> sucess(CodeMsg codeMsg,T data){
    return new ResultPage<T>(codeMsg.getCode(),codeMsg.getMsg(),data);
}

//失败的时候调用
public static <T> ResultPage<T> error(CodeMsg codeMsg){
    return new ResultPage<T>(codeMsg.getCode(),codeMsg.getMsg());
}

}


**2.5 异常捕获**

@Author lsc

@Description 异常捕获

@Date 2019/10/9 20:42

@Param

@return br/>**/
@ControllerAdvice
@Configuration
public class CommonExceptionHandler {

// 捕获CommonException异常
@ExceptionHandler(value = CommonException.class)br/>@ResponseBody
public ResponseEntity<ResultPage> CommonExceptionHandler(CommonException e){
// 获得异常消息
CodeMsg codeMsg = e.getCodeMsg();
// 设置错误消息页面返回