# add Exception handler

Author: 顾鲍尔

src/main/java/com/boylegu/springboot_vue/dao/ErrorInfo.java

@@ -0,0 +1,57 @@
+package com.boylegu.springboot_vue.dao;
+
+/**
+ * Created by gubaoer on 17/7/2.
+ */
+
+public class ErrorInfo<T> {
+
+    public static final Integer OK = 0;
+    public static final Integer ERROR = 100;
+
+    private Integer code;
+    private String message;
+    private String url;
+    private T data;
+
+    public String getUrl() {
+        return url;
+    }
+
+    public void setUrl(String url) {
+        this.url = url;
+    }
+
+    public static Integer getOK() {
+        return OK;
+    }
+
+    public static Integer getERROR() {
+        return ERROR;
+    }
+
+    public Integer getCode() {
+        return code;
+    }
+
+    public void setCode(Integer code) {
+        this.code = code;
+    }
+
+    public String getMessage() {
+        return message;
+    }
+
+    public void setMessage(String message) {
+        this.message = message;
+    }
+
+    public T getData() {
+        return data;
+    }
+
+    public void setData(T data) {
+        this.data = data;
+    }
+
+}

src/main/java/com/boylegu/springboot_vue/exception/ProjException.java

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+package com.boylegu.springboot_vue.exception;
+
+/**
+ * Created by gubaoer on 17/7/2.
+ */
+
+
+public class ProjException extends Exception {
+    public ProjException(String message) {
+        super(message);
+    }
+}

src/main/java/com/boylegu/springboot_vue/exception/ProjExceptionHandler.java

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+package com.boylegu.springboot_vue.exception;
+
+/**
+ * Created by gubaoer on 17/7/2.
+ */
+
+import com.boylegu.springboot_vue.dao.ErrorInfo;
+import org.springframework.web.bind.annotation.ControllerAdvice;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.ResponseBody;
+import org.springframework.web.servlet.ModelAndView;
+
+import javax.servlet.http.HttpServletRequest;
+
+@ControllerAdvice
+public class ProjExceptionHandler {
+
+    @ExceptionHandler(value = Exception.class)
+    public ModelAndView defaultErrorHandler(HttpServletRequest req, Exception e) throws Exception {
+        ModelAndView mav = new ModelAndView();
+        mav.addObject("exception", e);
+        mav.addObject("url", req.getRequestURL());
+        mav.setViewName("error");
+        return mav;
+    }
+
+    @ExceptionHandler(value = ProjException.class)
+    @ResponseBody
+    public ErrorInfo<String> jsonErrorHandler(HttpServletRequest req, ProjException e) throws Exception {
+        ErrorInfo<String> r = new ErrorInfo<>();
+        r.setMessage(e.getMessage());
+        r.setCode(ErrorInfo.ERROR);
+        r.setData("Some Data");
+        r.setUrl(req.getRequestURL().toString());
+        return r;
+    }
+
+}