Spring Security允许开发人员轻松地将安全功能集成到J2EE Web应用程序中,它通过Servlet过滤器实现“用户自定义”安全检查。
在本教程中,我们将向您展示如何在Spring MVC中集成Spring Security 3.0并安全访问。在集成成功后,当我们查看页面的内容时用户需要先输入正确的“用户名”和“密码”。
本教程的开发环境为:
1.Spring 3.0.5.RELEASE
2.Spring Security 3.0.5.RELEASE
3.Eclipse 3.6
4.JDK 1.6
5.Maven 3
注意:Spring Security 3.0 至少需要java 5.0或更高的运行环境。
1.目录结构
本教程的最终目录如下所示:
2.Spring Security依赖关系
为了正常运行 Spring security 3.0, 你需要加入 “spring-security-core.jar“, “spring-security-web.jar” and “spring-security-config.jar“. 在Maven库中你需要加入Spring配置库
pom.xml
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
<properties>
<spring.version>3.0.5.RELEASE</spring.version>
</properties>
<dependencies>
<!-- Spring 3 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- Spring Security -->
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-core</artifactId>
<version>${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>
</dependencies>
</project>
|
3.Spring MVC Web应用程序
本教程是一个简单的Spring MVC 应用程序,即访问“/welcome”跳转到“hello.jsp”页面,稍后用Spring Security安全访问这个链接。
HelloController.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
|
package com.mkyong.common.controller;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
@Controller
@RequestMapping("/welcome")
public class HelloController {
@RequestMapping(method = RequestMethod.GET)
public String printWelcome(ModelMap model) {
model.addAttribute("message", "Spring Security Hello World");
return "hello";
}
}
|
hello.jsp
1
2
3
4
5
|
<html>
<body>
<h1>Message : ${message}</h1>
</body>
</html>
|
mvc-dispatcher-servlet.xml
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
|
<beans xmlns=" http://www.springframework.org/schema/beans"
xmlns:context=" http://www.springframework.org/schema/context"
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/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<context:component-scan base-package="com.mkyong.common.controller" />
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix">
<value>/WEB-INF/pages/</value>
</property>
<property name="suffix">
<value>.jsp</value>
</property>
</bean>
</beans>
|
4.Spring Secuity:用户验证
创建一个单独的Spring配置文件去定义Spring Security相关的东西。它要实现的是:只有用户输入了正确的用户名“mkyong”和密码“123456”才可以访问“/welcome” 。
下面的Spring配置文件你应该明白是什么意思。
spring-security.xml:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
|
<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-3.0.3.xsd">
<http auto-config="true">
<intercept-url pattern="/welcome*" access="ROLE_USER" />
</http>
<authentication-manager>
<authentication-provider>
<user-service>
<user name="mkyong" password="123456" authorities="ROLE_USER" />
</user-service>
</authentication-provider>
</authentication-manager>
</beans:beans>
|
5.整合Spring Security
想要在Web应用程序中整合Spring Security,只需加入“DelegatingFilterProxy”作为Servlet过滤器拦截到来的请求即可。
web.xml
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
<web-app id="WebApp_ID" version="2.4"
xmlns=" http://java.sun.com/xml/ns/j2ee"
xmlns:xsi=" http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation=" http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<display-name>Spring MVC Application</display-name>
<!-- Spring MVC -->
<servlet>
<servlet-name>mvc-dispatcher</servlet-name>
<servlet-class>
org.springframework.web.servlet.DispatcherServlet
</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>mvc-dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
/WEB-INF/mvc-dispatcher-servlet.xml,
/WEB-INF/spring-security.xml
</param-value>
</context-param>
<!-- Spring Security -->
<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>
</web-app>
|
6.Demo
就是以上这些配置了,登陆页面在哪儿呢?不要着急,如果你不知道怎么创建登陆页面,我们将会创建一个简单的登陆页面去验证。
(登陆验证页面请访问:Spring Security实现的表单登陆的例子)
当我们访问“http://localhost:8080/SpringMVC/welcome”时,Spring Security 将会自动拦截到“http://localhost:8080/SpringMVC/spring_security_login”登陆页面验证身份。
http://localhost:8080/SpringMVC/spring_security_login页面如下所示:
如果输错了用户名和密码则页面会显示错误的消息,如下所示:
http://localhost:8080/SpringMVC/spring_security_login?login_error
如果我们输对了用户名和密码,Spring Security则会跳转到欢迎页面,如下所示:
http://localhost:8080/SpringMVC/welcome
本文为原创文章,转载请注明出处,首发于http://www.it161.com/article/javaDetail?articleid=140107223703
更多IT文章,请访问http://www.it161.com/