/*  * 參數(shù)獲取方式之屬性驅(qū)動(dòng)方式  */ public class TestAction extends ActionSupport {   //設(shè)置與表單項(xiàng)相對(duì)應(yīng)的屬性，并設(shè)置set，get方法   private String name;   private String password;      public String getName() {     return name;   }    public void setName(String name) {     this.name = name;   }    public String getPassword() {     return password;   }    public void setPassword(String password) {     this.password = password;   }    @Override   public String execute() throws Exception {     System.out.println("name:" + name + ",password:" + password);     return SUCCESS;   } } 

/*  * 參數(shù)獲取方法之模型驅(qū)動(dòng)方式  */ public class TestAction3 extends ActionSupport implements ModelDriven<User>{   /*    * （1）繼承自 ModelDriven<User>借口    * （2）創(chuàng)建User對(duì)象。    * （3）實(shí)現(xiàn)ModelDriven.getModel（）方法并返回該對(duì)象    */   private User user = new User();      @Override   public String execute() throws Exception {     System.out.println(user);     return SUCCESS;   }    @Override   public User getModel() {     return user;   } } 

/*  * 獲取參數(shù)方式之對(duì)象驅(qū)動(dòng)方式  */ public class TestAction2 extends ActionSupport {   /*    * 和屬性驅(qū)動(dòng)方式?jīng)]有什么不同，只不過我們這里的是對(duì)象而已    * 還有一點(diǎn)不同體現(xiàn)在表單項(xiàng)控件的屬性名上name=“對(duì)象名.屬性名”    */   private User user;      public User getUser() {     return user;   }    public void setUser(User user) {     this.user = user;   }    @Override   public String execute() throws Exception {     System.out.println(user);     return SUCCESS;   } } 

<form action="${pageContext.request.contextPath }/TestAction2.action" method="post">   用戶名：<input name="user.name" type="text" /><br/>   密碼：<input name="user.password" type="password" /><br/>   <input type="submit" value="登錄"> </form>