struts2 jsp和action相互传值通信的方式

首先是jsp向action传值：

首先你的jsp前端代码的name属相在action中必须要有set和get方法，要是属性是引用值得话，

在引用类的代码中也要有相应的set和get方法。如：

jsp：<s:textfield name="user.name" label="您的账号"></s:textfield>

action:

 

    private Iuser user;

    private IuserPort u = new IuserDAO();

    private Map session;

 

    public String execute() {

if (u.find_by_name_pass(user)) {//验证用户

   setSession((Map) ActionContext.getContext().getSession());//session作用域

   getSession().put("user", user);

   return SUCCESS;

}

this.addActionMessage("请检查您的用户名和密码");

return INPUT;

    }

 

    /**

     * @return the user

     */

    public Iuser getUser() {

return user;

    }

 

    /**

     * @param user the user to set

     */

    public void setUser(Iuser user) {

this.user = user;

    }

 

    /**

     * @return the u

     */

    public IuserPort getU() {

return u;

    }

 

    /**

     * @param u the u to set

     */

    public void setU(IuserPort u) {

this.u = u;

    }

 

    /**

     * @return the session

     */

    public Map getSession() {

return session;

    }

 

    /**

     * @param session the session to set

     */

    public void setSession(Map session) {

this.session = session;

    }

}

user的bean:

package com.fyz.pojo;

 

/**

 * Iuser entity. @author MyEclipse Persistence Tools

 */

 

public class Iuser implements java.io.Serializable {

 

// Fields

 

private Integer id;

private String name;

private String pass;

private String stat;

 

// Constructors

 

/** default constructor */

public Iuser() {

}

 

public Iuser(String name, String pass){

this.name = name;

this.pass = pass;

}

 

/** full constructor */

public Iuser(String name, String pass, String stat) {

this.name = name;

this.pass = pass;

this.stat = stat;

}

 

// Property accessors

 

public Integer getId() {

return this.id;

}

 

public void setId(Integer id) {

this.id = id;

}

 

public String getName() {

return this.name;

}

 

public void setName(String name) {

this.name = name;

}

 

public String getPass() {

return this.pass;

}

 

public void setPass(String pass) {

this.pass = pass;

}

 

public String getStat() {

return this.stat;

}

 

public void setStat(String stat) {

this.stat = stat;

}

 

}

action向jsp传值：

 

action:

 

    private Iuser user;

    private IuserPort u = new IuserDAO();

    private Map session;

 

    public String execute() {

if (u.find_by_name_pass(user)) {//验证用户

   setSession((Map) ActionContext.getContext().getSession());//session作用域

   getSession().put("user", user);

   return SUCCESS;

}

this.addActionMessage("请检查您的用户名和密码");

return INPUT;

    }

 

    /**

     * @return the user

     */

    public Iuser getUser() {

return user;

    }

 

    /**

     * @param user the user to set

     */

    public void setUser(Iuser user) {

this.user = user;

    }

 

    /**

     * @return the u

     */

    public IuserPort getU() {

return u;

    }

 

    /**

     * @param u the u to set

     */

    public void setU(IuserPort u) {

this.u = u;

    }

 

    /**

     * @return the session

     */

    public Map getSession() {

return session;

    }

 

    /**

     * @param session the session to set

     */

    public void setSession(Map session) {

this.session = session;

    }

}

 

jsp:

 姓名：<s:textfield value="%{#session.user.name}"></s:textfield>