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Spring 401、404、405、500 整合 LoginInterceptor

 
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原创转载请注明出处：http://agilestyle.iteye.com/blog/2382526

 

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


 

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