sa-token/sa-token-demo-springboot/src/main/java/com/pj/test/GlobalException.java

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package com.pj.test;
import java.io.IOException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RestControllerAdvice;
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import cn.dev33.satoken.exception.NotLoginException;
import cn.dev33.satoken.exception.NotPermissionException;
/**
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* 全局异常处理
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*/
@RestControllerAdvice // 可指定包前缀,比如:(basePackages = "com.pj.admin")
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public class GlobalException {
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// 在每个控制器之前触发的操作
@ModelAttribute
public void get(HttpServletRequest request) throws IOException {
}
// 全局异常拦截(拦截项目中的所有异常)
@ExceptionHandler
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public AjaxJson handlerException(Exception e, HttpServletRequest request, HttpServletResponse response)
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throws Exception {
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// 打印堆栈,以供调试
e.printStackTrace();
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// 不同异常返回不同状态码
AjaxJson aj = null;
if (e instanceof NotLoginException) { // 如果是未登录异常
aj = AjaxJson.getNotLogin();
// 判断具体是什么类型
NotLoginException ee = (NotLoginException) e;
if(ee.getType() == NotLoginException.NOT_TOKEN) {
aj.setMsg("未提供token");
}
if(ee.getType() == NotLoginException.INVALID_TOKEN) {
aj.setMsg("token无效");
}
if(ee.getType() == NotLoginException.BE_REPLACED) {
aj.setMsg("token已被顶下线");
}
if(ee.getType() == NotLoginException.TOKEN_TIMEOUT) {
aj.setMsg("token已过期");
}
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} else if(e instanceof NotPermissionException) { // 如果是权限异常
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NotPermissionException ee = (NotPermissionException) e;
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aj = AjaxJson.getNotJur("无此权限:" + ee.getCode());
} else { // 普通异常, 输出500 + 异常信息
aj = AjaxJson.getError(e.getMessage());
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}
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// 返回给前端
return aj;
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// 输出到客户端
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// response.setContentType("application/json; charset=utf-8"); // http说明我要返回JSON对象
// response.getWriter().print(new ObjectMapper().writeValueAsString(aj));
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}
}