SimpleErrorController.java
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package com.zhaoonline.support.gateway.web;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.web.ErrorAttributes;
import org.springframework.boot.autoconfigure.web.ErrorController;
import org.springframework.util.Assert;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.context.request.RequestAttributes;
import org.springframework.web.context.request.ServletRequestAttributes;
import javax.servlet.http.HttpServletRequest;
import java.util.Map;
@RestController
@RequestMapping("/error")
public class SimpleErrorController implements ErrorController {
private final ErrorAttributes errorAttributes;
@Autowired
public SimpleErrorController(ErrorAttributes errorAttributes) {
Assert.notNull(errorAttributes, "ErrorAttributes must not be null");
this.errorAttributes = errorAttributes;
}
@Override
public String getErrorPath() {
return "/error";
}
@RequestMapping
public Map<String, Object> error(HttpServletRequest aRequest){
Map<String, Object> body = getErrorAttributes(aRequest,getTraceParameter(aRequest));
String trace = (String) body.get("trace");
if(trace != null){
String[] lines = trace.split("\n\t");
body.put("trace", lines);
}
return body;
}
private boolean getTraceParameter(HttpServletRequest request) {
String parameter = request.getParameter("trace");
if (parameter == null) {
return false;
}
return !"false".equals(parameter.toLowerCase());
}
private Map<String, Object> getErrorAttributes(HttpServletRequest aRequest, boolean includeStackTrace) {
RequestAttributes requestAttributes = new ServletRequestAttributes(aRequest);
return errorAttributes.getErrorAttributes(requestAttributes, includeStackTrace);
}
}