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跟杨春娟学SpringBoot笔记：全局异常处理之自定义错误处理controller通过继承BasicErrorController

完成：第一遍

1.如何通过继承BasicErrorController实现自定义错误处理controller？

步骤一：创建ErrorPageController类

ErrorPageController.java

package com.springboot.demo.SpringBootDemoProject.error;import java.util.List;import java.util.Map;import javax.servlet.http.HttpServletRequest;import org.springframework.boot.autoconfigure.web.ErrorProperties;import org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController;import org.springframework.boot.autoconfigure.web.servlet.error.ErrorViewResolver;import org.springframework.boot.web.servlet.error.ErrorAttributes;public class ErrorPageController extends BasicErrorController {
   	public ErrorPageController(ErrorAttributes errorAttributes, ErrorProperties errorProperties,			List
   
     errorViewResolvers) {
   					super(errorAttributes, errorProperties, errorViewResolvers);	}	@Override	protected Map
    
      getErrorAttributes(HttpServletRequest request, boolean includeStackTrace) {
   				Map
     
       errorMap = super.getErrorAttributes(request, includeStackTrace);				errorMap.remove("message");		errorMap.remove("path");		return errorMap;	}		}
     
    
   

2.如何通过配置注解来替换BasicErrorController的功能？

步骤一：创建配置ErrorConfiguration.java

ErrorConfiguration.java

package com.springboot.demo.SpringBootDemoProject.error;import java.util.List;import org.springframework.beans.factory.ObjectProvider;import org.springframework.boot.autoconfigure.web.ServerProperties;import org.springframework.boot.autoconfigure.web.servlet.error.ErrorViewResolver;import org.springframework.boot.web.servlet.error.ErrorAttributes;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;@Configurationpublic class ErrorConfiguration {
   	@Bean	public ErrorPageController basicErrorController(ErrorAttributes errorAttributes, 			ServerProperties serverProperties, 			ObjectProvider
   
    
     > errorViewResolversProvider) {
   					return new ErrorPageController(errorAttributes, serverProperties.getError(), 				errorViewResolversProvider.getIfAvailable());	}}
    
   

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