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Project Directory
Maven Dependency
<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/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>org.fool.spring</groupId> <artifactId>spring</artifactId> <packaging>war</packaging> <version>1.0-SNAPSHOT</version> <name>session-share Maven Webapp</name> <url>http://maven.apache.org</url> <dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>4.3.8.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>4.3.8.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>4.3.8.RELEASE</version> </dependency> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.4.4</version> </dependency> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.3.1</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.8.8.1</version> </dependency> <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-lang3</artifactId> <version>3.5</version> </dependency> <dependency> <groupId>commons-dbcp</groupId> <artifactId>commons-dbcp</artifactId> <version>1.4</version> </dependency> <dependency> <groupId>redis.clients</groupId> <artifactId>jedis</artifactId> <version>2.9.0</version> </dependency> <dependency> <groupId>org.apache.httpcomponents</groupId> <artifactId>httpclient</artifactId> <version>4.5.3</version> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.1.0</version> <scope>provided</scope> </dependency> <dependency> <groupId>javax.servlet.jsp</groupId> <artifactId>javax.servlet.jsp-api</artifactId> <version>2.3.1</version> <scope>provided</scope> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.42</version> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> <scope>test</scope> </dependency> </dependencies> <build> <resources> <resource> <directory>src/main/java</directory> <includes> <include>**/*.xml</include> </includes> </resource> <resource> <directory>src/main/resources</directory> <includes> <include>**/*.properties</include> <include>**/*.xml</include> </includes> </resource> </resources> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>3.6.1</version> <configuration> <source>1.8</source> <target>1.8</target> </configuration> </plugin> <plugin> <groupId>org.apache.tomcat.maven</groupId> <artifactId>tomcat7-maven-plugin</artifactId> <version>2.2</version> <configuration> <port>8080</port> <path>/spring</path> </configuration> </plugin> <plugin> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-maven-plugin</artifactId> <version>1.3.5</version> <configuration> <verbose>true</verbose> <overwrite>true</overwrite> </configuration> </plugin> </plugins> </build> </project>
web.xml
<?xml version="1.0" encoding="UTF-8"?> <web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"> <context-param> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/spring/root-context.xml</param-value> </context-param> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <servlet> <servlet-name>appServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/spring/servlet-context.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>appServlet</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <filter> <filter-name>CharacterEncodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> <init-param> <param-name>forceEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>CharacterEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <session-config> <session-timeout>30</session-timeout> </session-config> <error-page> <error-code>500</error-code> <location>/WEB-INF/views/error/500.jsp</location> </error-page> <error-page> <error-code>404</error-code> <location>/WEB-INF/views/error/404.jsp</location> </error-page> </web-app>
root-context.xml
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <context:annotation-config/> <context:component-scan base-package="org.fool.spring"/> </beans>
servlet-context.xml
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <mvc:annotation-driven/> <mvc:resources location="/resources/" mapping="/resources/**"/> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/views/"/> <property name="suffix" value=".jsp"/> </bean> <context:component-scan base-package="org.fool.spring"/> <mvc:interceptors> <mvc:interceptor> <mvc:mapping path="/**"/> <bean class="org.fool.spring.interceptor.LoginInterceptor"> <property name="excludedUrls"> <list> <value>/login</value> </list> </property> </bean> </mvc:interceptor> </mvc:interceptors> </beans>
Controller
LoginController.java
package org.fool.spring.controller; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.PostMapping; import javax.servlet.http.HttpServletRequest; @Controller public class LoginController { @GetMapping("/login") public String login() { return "login"; } @PostMapping("/login") public String login(HttpServletRequest request) { request.getSession().setAttribute("user", "spring exception test"); return "success"; } @PostMapping("/logout") public String logout(HttpServletRequest request) { request.getSession().removeAttribute("user"); return "login"; } }
TestResponseStatusController.java
package org.fool.spring.controller; import org.fool.spring.exception.SpringInternalErrorException; import org.fool.spring.exception.SpringNotFoundException; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.PathVariable; @Controller public class TestResponseStatusController { @GetMapping("/testResponseStatusNotFoundException/{id}") public String testResponseStatusNotFoundException(@PathVariable int id) { if (id == 404) { throw new SpringNotFoundException(); } return "success"; } @GetMapping("/testResponseStatusInternalServerException/{id}") public String testResponseStatusInternalServerException(@PathVariable int id) { if (id == 500) { throw new SpringInternalErrorException(); } return "success"; } }
exception
AppGlobalException.java
package org.fool.spring.exception; import org.springframework.web.HttpRequestMethodNotSupportedException; import org.springframework.web.bind.annotation.ControllerAdvice; import org.springframework.web.bind.annotation.ExceptionHandler; @ControllerAdvice public class AppGlobalException { @ExceptionHandler(SpringNotFoundException.class) public String pageNotFoundHandler() { return "error/404"; } @ExceptionHandler(HttpRequestMethodNotSupportedException.class) public String methodNotAllowedHandler() { return "error/405"; } @ExceptionHandler(SpringInternalErrorException.class) public String serverInternalErrorHandler() { return "error/500"; } @ExceptionHandler(SpringNotAuthException.class) public String pageNotAuthHandler() { return "login"; } }
SpringInternalErrorException.java
package org.fool.spring.exception; import org.springframework.http.HttpStatus; import org.springframework.web.bind.annotation.ResponseStatus; @ResponseStatus(value = HttpStatus.INTERNAL_SERVER_ERROR, reason = "Internal Server Error in Spring") public class SpringInternalErrorException extends RuntimeException { }
SpringNotAuthException.java
package org.fool.spring.exception; import org.springframework.http.HttpStatus; import org.springframework.web.bind.annotation.ResponseStatus; @ResponseStatus(value = HttpStatus.UNAUTHORIZED, reason = "Unauthorized in Spring") public class SpringNotAuthException extends RuntimeException { }
SpringNotFoundException.java
package org.fool.spring.exception; import org.springframework.http.HttpStatus; import org.springframework.web.bind.annotation.ResponseStatus; @ResponseStatus(value = HttpStatus.NOT_FOUND, reason = "Not Found in Spring") public class SpringNotFoundException extends RuntimeException { }
Interceptor
LoginInterceptor.java
package org.fool.spring.interceptor; import org.fool.spring.exception.SpringNotAuthException; import org.springframework.web.servlet.HandlerInterceptor; import org.springframework.web.servlet.ModelAndView; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import java.util.List; public class LoginInterceptor implements HandlerInterceptor { private List<String> excludedUrls; public void setExcludedUrls(List<String> excludedUrls) { this.excludedUrls = excludedUrls; } @Override public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception { String requestUri = request.getRequestURI(); for (String url : excludedUrls) { if (requestUri.endsWith(url)) { return true; } } HttpSession session = request.getSession(); if (session.getAttribute("user") == null) { throw new SpringNotAuthException(); } return true; } @Override public void postHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, ModelAndView modelAndView) throws Exception { } @Override public void afterCompletion(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception e) throws Exception { } }
Page
404.jsp
404
405.jsp
405
500.jsp
500
login.jsp
<html> <head> <title>Login</title> </head> <body> <h1>login page</h1> <form action="/spring/login" method="post"> <input type="submit" value="login"> </form> </body> </html>
success.jsp
<html> <head> <title>Success</title> </head> <body> <h1>success page</h1> <form action="/spring/logout" method="post"> <input type="submit" value="logout"> </form> </body> </html>
Test
tomcat7:run
http://localhost:8080/spring/login
点击login按钮
登录成功后
http://localhost:8080/spring/testResponseStatusNotFoundException/404
http://localhost:8080/spring/testResponseStatusNotFoundException/0
http://localhost:8080/spring/testResponseStatusInternalServerException/500
http://localhost:8080/spring/testResponseStatusInternalServerException/0
点击logout
再次尝试请求http://localhost:8080/spring/logout
Note:
因为是浏览器是get请求,程序中logout只支持post,所以会报405
在未登录的情况下尝试请求
http://localhost:8080/spring/testResponseStatusInternalServerException/500
会直接跳掉login页面