struts1 入门小例子

工具：eclipse 3.4.2

jdk：1.6.0_22

tomcat:5.5

sturts1.2.7

1.建立动态web工程，工程名字myStruts1

2.修改build path



 3.向web-inf下的lib中添加struts1的四个基本jar

    commons-beanutils.jar

    commons-digester.jar

    commons-logging.jar

    struts.jar

4.修改web.xml，添加struts1的核心控制器：actionservlet

 

<?xml version="1.0" encoding="UTF-8"?>
<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>
 myStruts1</display-name>
    <!--
    ================================================================================
    action servlet
    ================================================================================
    -->    <servlet>
        <servlet-name>action</servlet-name>
        <servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
        <init-param>
            <param-name>config</param-name>
            <param-value>/WEB-INF/struts-config.xml</param-value>
        </init-param>
        <init-param>
            <param-name>debug</param-name>
            <param-value>2</param-value>
        </init-param>
        <init-param>
            <param-name>detail</param-name>
            <param-value>2</param-value>
        </init-param>
        <load-on-startup>2</load-on-startup>
    </servlet>    <!--
    ================================================================================
    action servlet mapping
    ================================================================================
    -->    <servlet-mapping>
        <servlet-name>action</servlet-name>
        <url-pattern>/action/*</url-pattern>
    </servlet-mapping> <welcome-file-list>
  <welcome-file>login.jsp</welcome-file>
 </welcome-file-list>
</web-app>

5.编写action和formbean

首先在src下建立放action的包sun.com.struts.action和放formbean的包sun.com.struts.pojo

①　编写LoginAction，该类继承自MappingDispatchAction，该类可以方便的指定想要调用的方法，这使得在不同页面调用同一action的不同方法很容易实现。

package sun.com.struts.action;import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.actions.MappingDispatchAction;import sun.com.struts.pojo.LoginForm;/**
 * user login action
 * @author Chen Gao F
 * @version $Revision: 64555 $ $Date: 2012-04-19 15:01:28 +0800 (Thu, 19 Apr 2012) $
 * @since 2011/08/05
 *
 */
public class LoginAction extends MappingDispatchAction {
    /**
     * 画面表示
     *
     * @param map ActionMapping 
     * @param form ActionForm
     * @param request HttpServletRequest
     * @param response HttpServletResponse
     * @return actionForward
    */
    public ActionForward login(ActionMapping map, ActionForm form,
            HttpServletRequest request, HttpServletResponse response) {
        LoginForm loginForm = (LoginForm) form; 
        String name = loginForm.getName();
       
        String passWord = loginForm.getPassWord();
        if ("lin".equals(name) && "lin".equals(passWord)) {
            return map.findForward("success");
        } else {
            return map.findForward("input");
        }    }}可以看到上面action中实现功能的方法是login，为什么是login，在下面的配置文件中会有介绍。

②　编写formBean

 /**
 *
 */
package sun.com.struts.pojo;

import org.apache.struts.action.ActionForm;

/**
 * user login action
 * @author Chen Gao F
 * @version $Revision: 64555 $ $Date: 2012-04-19 15:01:28 +0800 (Thu, 19 Apr 2012) $
 * @since 2011/08/05
 *
 */
public class LoginForm extends ActionForm {
    /**
     *
     */
    private static final long serialVersionUID = 7260629305234876476L;
    private String name;
    private String passWord;

    /**
     * @param name
     *            the name to set 
     */
    public void setName(String name) {
        this.name = name;
    }

    /**
     * @return name name
     */
    public String getName() {
        return name;
    }

    /**
     * @param passWord
     *            the passWord to set
     */
    public void setPassWord(String passWord) {
        this.passWord = passWord;
    }

    /**
     * @return the passWord
     */
    public String getPassWord() {
        return passWord;
    }

}

6.编写核心配置文件struts-config.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts-config PUBLIC
          "-//Apache Software Foundation//DTD Struts Configuration 1.2//EN"
          "http://jakarta.apache.org/struts/dtds/struts-config_1_2.dtd">
<struts-config>
  <!--
  ==================================================================================
            from Bean
  ==================================================================================
  -->
  <form-beans>
      <!-- user login from -->
    <form-bean name="LoginForm" type="sun.com.struts.pojo.LoginForm">
      <form-property name="name"               type="java.lang.String"/>
      <form-property name="passWord"       type="java.lang.String"/>
    </form-bean>
  </form-beans>
    <!--
  ==================================================================================
            action mapping
  ==================================================================================
  -->
  <action-mappings>

    <!-- user login from -->
    <action path="/loginAction" name="LoginForm" scope="request" validate="false"
            type="sun.com.struts.action.LoginAction" parameter="login">
      <forward name="success" path="/WEB-INF/jsp/success.jsp" />
      <forward name="input" path="/WEB-INF/jsp/error.jsp" />
    </action>
    </action-mappings>
</struts-config> 

其中需要注意的是，在action-mapping中，对loginAction的配置多了一个parameter="login",他的值和上面action中的方法名一致，正是这个属性值决定的path="loginAction"的请求会调用action中的login方法。

7.编写视图层jsp

①login.jsp放在webRoot目录下，

 <%@ page language="java" contentType="text/html; charset=windows-31j"
    pageEncoding="windows-31j"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=windows-31j">
<title>Login Home</title>
</head>
<body><form action="action/loginAction" method="post">
<div align="center">
 <table><tr>
      <td>name</td>
      <td><input type = "text" name="name"/></td>
    </tr>
    <tr><td>passWord</td>
      <td><input type = "password" name="passWord"/></td>
    </tr>
    <tr><td>submit</td>
    <td> <input type = "submit" value="submit"/></td>
    </tr>
  </table>
  </div>
  </form>
</body>
</html>②编写success.jsp 放在WebRoot/WEB-INF/jsp目录下

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>success</title>
</head>
<body>
welcome.
</body>
</html>③编写errer.jsp放在WebRoot/WEB-INF/jsp目录下

<%@ page language="java" contentType="text/html; charset=windows-31j"
    pageEncoding="windows-31j"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=windows-31j">
<title>error</title>
</head>
<body>
I am Sorry.you are wrong!
</body>
</html>至此，所有的代码工作全部完成，工程的目录结构如下

 

然后就可以编译启动tomcat运行！