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cas 单点登录(SSO)实验之二: cas-client

参考文章：

http://my.oschina.net/indestiny/blog/200768#comments

http://wenku.baidu.com/view/0bcc0d01e87101f69e319595.html

接上一篇文章：

cas 单点登录(SSO)实验之一: jasig cas-server 安装

本文说明如何写一个web服务（cas-study），使用cas-server提供的验证服务。当用户访问这个cas-study服务，会使用上一节的cas-server来验证。为了说明问题，本文使用tomcat7，http：8080。

1 用Maven新建一个web工程

$ mvn archetype:generate -DgroupId=com.pepstack -DartifactId=cas-study -DarchetypeArtifactId=maven-archetype-webapp -DinteractiveMode=false -X

如果发现mvn命令停在下面这行：

[DEBUG] Searching for remote catalog: http://repo1.maven.org/maven2/archetype-catalog.xml

把 archetype-catalog.xml 拷贝到下面的路径（2.x 根据实际情况而定)：

~/.m2/repository/org/apache/maven/archetype/archetype-catalog/2.x

然后重新执行（增加了选项-DarchetypeCatalog=local）：

$ mvn archetype:generate -DgroupId=com.pepstack -DartifactId=cas-study -DarchetypeArtifactId=maven-archetype-webapp -DarchetypeCatalog=local -DinteractiveMode=false -X

输入下面的命令创建一个quickstart工程：

$ mvn archetype:generate -DgroupId=com.pepstack -DartifactId=quickstart -DarchetypeArtifactId=maven-archetype-quickstart -DinteractiveMode=false -X -DarchetypeCatalog=local

将quickstart工程的java和test目录复制到cas-study工程下：

$ cp -r quickstart/src/test cas-study/src/

$ cp -r quickstart/src/main/java cas-study/src/main

在cas-study目录下运行命令，编译war:

$ mvn clean compile install

$ mvn test

2 修改web工程

在cas-study目录下：

1) 按下面的内容修改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.pepstack</groupId>
    <artifactId>cas-study</artifactId>
    <packaging>war</packaging>
    <version>1.0-SNAPSHOT</version>
    <name>cas-study Maven Webapp</name>
    <url>http://maven.apache.org</url>

    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>3.8.1</version>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>commons-logging</groupId>
            <artifactId>commons-logging</artifactId>
            <version>1.1.3</version>
        </dependency>

        <dependency>
            <!-- Jasig CAS Client For Java Core -->
            <groupId>org.jasig.cas.client</groupId>
            <artifactId>cas-client-core</artifactId>
            <version>3.4.0</version>
            <exclusions>
                <exclusion>
                    <artifactId>servlet-api</artifactId>
                    <groupId>javax.servlet</groupId>
                </exclusion>
            </exclusions>
        </dependency>

        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.1.0</version>
            <scope>provided</scope>
        </dependency>

    </dependencies>

    <build>
        <finalName>cas-study</finalName>

        <plugins>
            <!-- $ mvn jetty:run -->
            <!--
            <plugin>
                <groupId>org.mortbay.jetty</groupId>
                <artifactId>maven-jetty-plugin</artifactId>
            </plugin>
            -->

            <plugin>
                <groupId>org.eclipse.jetty</groupId>
                <artifactId>jetty-maven-plugin</artifactId>
                <version>9.1.0.v20131115</version>
                <configuration>
                    <webApp>
                        <contextPath>/cas-study</contextPath>
                    </webApp>
                </configuration>
            </plugin>

        </plugins>

    </build>

</project>

2) jetty 运行命令

$ mvn clean compile install

$ mvn jetty:run

然后打开浏览器输入:

http://localhost:8080/cas-study/

看到下面的内容：

Hello World!

3) Eclipse 工程

$ mvn eclipse:eclipse

然后:

eclipse>> import existing project

cas-study run as server

3 添加一个简单的serverlet

/**
 * SimpleServlet.java
 */
package com.pepstack;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class SimpleServlet extends HttpServlet
{
    @Override
    protected void doGet(final HttpServletRequest req, final HttpServletResponse resp)
        throws ServletException, IOException {
        final PrintWriter out = resp.getWriter();
        out.println("<h1>SimpleServlet Executed</h1>");
        out.flush();
        out.close();
    }
}

<!DOCTYPE web-app PUBLIC
 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app>
    <display-name>Archetype Created Web Application</display-name>

    <servlet>
        <servlet-name>simple</servlet-name>
        <servlet-class>com.pepstack.SimpleServlet</servlet-class>
    </servlet>
    <servlet-mapping>
        <servlet-name>simple</servlet-name>
        <url-pattern>/simple</url-pattern>
    </servlet-mapping>
</web-app>

$ mvn clean compile install jetty:run

打开浏览器访问：

http://localhost:8080/cas-study/simple

显示：

SimpleServlet Executed

4 添加一个简单的serverlet

cas 单点登录(SSO)实验之二: cas-client

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原文地址：http://blog.csdn.net/ubuntu64fan/article/details/47336491