/* 
 * 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>