【struts2】取值

1.获取Action类中的属性值

  • Action类：LoginTest.java
package test;

public class LoginTest {
    private String userName = "";
    private String passWord = "";

    public String execute() {
        if(this.userName .equals( this.passWord))
            return "SUCCESS";
        else return "ERROR";
    }

    public String getUserName() {
        return userName;
    }
    public void setUserName(String userName) {
        this.userName = userName;
    }
    public String getPassWord() {
        return passWord;
    }
    public void setPassWord(String passWord) {
        this.passWord = passWord;
    }

}
  • 测试主页index.jsp
<body>
<s:form action="/logintest.action">
    <s:textfield name="userName" label="UserName"></s:textfield>
    /*此处name值要和Action类中的对应的属性名称相同，且必须有该属性的getter和setter方法*/
    <s:password name="passWord" label="PassWord"></s:password>          
    <s:submit value="Click Here"></s:submit> 
</s:form> 
</body>
  • 测试登陆成功页面test.jsp
<body>
<h1>Hello ,<s:property value="userName"/> </h1>
</body>

（引用标签：<%@ taglib prefix="s" uri="/struts-tags"%>）

这里写图片描述
点击按钮跳转到test.jsp
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2. pageContext, request, session、application四大作用域中获取值

  • 在Action类中实现SessionAware 接口：
public class SessionTest1Action extends ActionSupport implements SessionAware {  
    private Map session;  
    public void setSession(Map session) {  
        this.session = session;  
    }  
    public String execute() {  
        this.session.put("username", "ABC");  
        return SUCCESS;  
    }  
}
  • jsp页面取值：
<s:property value="#session.username"/>
posted @ 2017-05-14 11:16  SEC.VIP_网络安全服务  阅读(102)  评论(0)  编辑  收藏  举报