Study：spring security简单例子

创建一个maven web项目,pom.xml

<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>com.hisky</groupId>
  <artifactId>security1</artifactId>
  <packaging>war</packaging>
  <version>0.0.1-SNAPSHOT</version>
  <name>security1 Maven Webapp</name>
  <url>http://maven.apache.org</url>
  <properties>
        <spring.version>3.1.4.RELEASE</spring.version>
    </properties>
  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework.security</groupId>
        <artifactId>spring-security-core</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.security</groupId>
        <artifactId>spring-security-web</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.security</groupId>
        <artifactId>spring-security-config</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.security</groupId>
        <artifactId>spring-security-taglibs</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-aop</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>cglib</groupId>
        <artifactId>cglib</artifactId>
        <version>2.2</version>
    </dependency>
    <dependency>
        <groupId>commons-logging</groupId>
        <artifactId>commons-logging</artifactId>
        <version>1.2-SNAPSHOT</version>
    </dependency>
  </dependencies>
  <build>
    <finalName>security1</finalName>
  </build>
</project>

 web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
    version="2.5">
    <display-name>Archetype Created Web Application</display-name>
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>
            classpath:spring/applicationContext.xml
        </param-value>
    </context-param>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <filter>
        <filter-name>springSecurityFilterChain</filter-name>
        <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>springSecurityFilterChain</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
        <welcome-file>index.html</welcome-file>
    </welcome-file-list>
</web-app>

 applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns="http://www.springframework.org/schema/security"
    xmlns:beans="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
                        http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security-3.1.xsd">
    <http pattern="/login.jsp" security="none" />
    <http access-denied-page="/denied.jsp">
        <form-login login-page="/login.jsp" default-target-url="/index.jsp" />
        <intercept-url pattern="/admin.jsp" access="ROLE_ADMIN" /><!--访问admin.js必须有admin权限-->
        <intercept-url pattern="/**" access="ROLE_USER,ROLE_ADMIN" /><!--访问其他页面，必须有user或admin权限-->
        <session-management>
            <concurrency-control max-sessions="1"
                error-if-maximum-exceeded="false" />
        </session-management>
    </http>
    <authentication-manager>
        <authentication-provider>
            <user-service>
                <user name="admin" password="admin" authorities="ROLE_ADMIN" />
                <user name="test" password="test" authorities="ROLE_USER" />
            </user-service>
        </authentication-provider>
    </authentication-manager>
</beans:beans>

 login.jsp

<%@page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<!DOCTYPEhtmlPUBLIC"-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>登录</title>
</head>
<body>
    <form action="j_spring_security_check" method="POST">
        <table>
            <tr>
                <td>用户:</td>
                <td><input type='text' name='j_username'></td>
            </tr>
            <tr>
                <td>密码:</td>
                <td><input type='password' name='j_password'></td>
            </tr>
            <tr>
                <td><input name="submit" type="submit"></td>
                <td><input name="reset" type="reset"></td>
            </tr>
        </table>
    </form>
</body>
</html>

 index.jsp

<%@page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<!DOCTYPEhtmlPUBLIC"-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>index page</title>
</head>
<body>
    index page
    <a href="admin.jsp">admin.jsp</a>
</body>
</html>

 denied.jsp

<%@page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<!DOCTYPEhtmlPUBLIC"-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>denied page.</title>
</head>
<body>
    denied page.
</body>
</html>

 admin.jsp

<%@page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<!DOCTYPEhtmlPUBLIC"-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>admin</title>
</head>
<body>
    hello, admin!
</body>
</html>