1、总览
2、代码
1）、pom.xml
<dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <optional>true</optional> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-tomcat</artifactId> <scope>provided</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> </dependencies>
2）、application.properties
server.error.whitelabel.enabled=false
server.error.include-stacktrace=always
3）、MyController.java
import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.RequestMapping; @Controller public class MyController { @RequestMapping("/") public String handler (Model model) { throw new RuntimeException("test exception"); } }
4）、MyCustomErrorController.java
import org.springframework.boot.web.servlet.error.ErrorController; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseBody; import javax.servlet.http.HttpServletRequest; /** * @author www.gomepay.com * @date 2019/11/18 */ @Controller public class MyCustomErrorController implements ErrorController { @RequestMapping("/error") @ResponseBody public String handleError(HttpServletRequest request) { Integer statusCode = (Integer) request.getAttribute("javax.servlet.error.status_code"); Exception exception = (Exception) request.getAttribute("javax.servlet.error.exception"); return String.format("<html><body><h2>Error Page</h2><div>Status code: <b>%s</b></div>" + "<div>Exception Message: <b>%s</b></div><body></html>", statusCode, exception==null? "N/A": exception.getMessage()); } @Override public String getErrorPath() { return "/error"; } }
3、执行
