Spring Boot异常处理

25.Spring-Boot-Exception/pom.xml

@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+
+	<groupId>com.springboot</groupId>
+	<artifactId>Spring-Boot-Exception</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<packaging>jar</packaging>
+
+	<name>Spring-Boot-Exception</name>
+	<description>Demo project for Spring Boot</description>
+
+	<parent>
+		<groupId>org.springframework.boot</groupId>
+		<artifactId>spring-boot-starter-parent</artifactId>
+		<version>1.5.14.RELEASE</version>
+		<relativePath/> <!-- lookup parent from repository -->
+	</parent>
+
+	<properties>
+		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+		<java.version>1.8</java.version>
+	</properties>
+
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-web</artifactId>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-test</artifactId>
+			<scope>test</scope>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+			</plugin>
+		</plugins>
+	</build>
+
+
+</project>

25.Spring-Boot-Exception/src/main/java/cc/mrbird/Application.java

@@ -0,0 +1,11 @@
+package cc.mrbird;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class Application {
+    public static void main(String[] args) {
+        SpringApplication.run(Application.class, args);
+    }
+}

25.Spring-Boot-Exception/src/main/java/cc/mrbird/controller/UserController.java

@@ -0,0 +1,17 @@
+package cc.mrbird.controller;
+
+import cc.mrbird.exception.UserNotExistException;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("user")
+public class UserController {
+
+    @GetMapping("/{id:\\d+}")
+    public void get(@PathVariable String id) {
+        throw new UserNotExistException(id);
+    }
+}

25.Spring-Boot-Exception/src/main/java/cc/mrbird/exception/UserNotExistException.java

@@ -0,0 +1,21 @@
+package cc.mrbird.exception;
+
+public class UserNotExistException extends RuntimeException{
+    private static final long serialVersionUID = -1574716826948451793L;
+
+    private String id;
+
+    public UserNotExistException(String id){
+        super("user not exist");
+        this.id = id;
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+}
+

25.Spring-Boot-Exception/src/main/java/cc/mrbird/handler/ControllerExceptionHandler.java

@@ -0,0 +1,25 @@
+package cc.mrbird.handler;
+
+import cc.mrbird.exception.UserNotExistException;
+import org.springframework.http.HttpStatus;
+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.bind.annotation.ResponseStatus;
+
+import java.util.HashMap;
+import java.util.Map;
+
+@ControllerAdvice
+public class ControllerExceptionHandler {
+
+    @ExceptionHandler(UserNotExistException.class)
+    @ResponseBody
+    @ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)
+    public Map<String, Object> handleUserNotExistsException(UserNotExistException e) {
+        Map<String, Object> map = new HashMap<>();
+        map.put("id", e.getId());
+        map.put("message", e.getMessage());
+        return map;
+    }
+}

25.Spring-Boot-Exception/src/main/resources/resources/error/500.html

@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>500</title>
+</head>
+<body>
+    系统内部异常
+</body>
+</html>

25.Spring-Boot-Exception/src/test/java/cc/mrbird/cc/mrbird/demo/ApplicationTests.java

@@ -0,0 +1,16 @@
+package cc.mrbird.cc.mrbird.demo;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+public class ApplicationTests {
+
+	@Test
+	public void contextLoads() {
+	}
+
+}