struts2開發action 的三種方法以及通配符、路徑匹配原則、常量

struts2開發action 的三種方法

1、繼承ActionSupport

public class UserAction extends ActionSupport {// Action中業務處理方法public String login() {System.out.println("UserAction.login()");
//      return "success";return SUCCESS;}
}

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2、實現Action

public class UserAction3 implements Action {// Action中業務處理方法public String login() {System.out.println("UserAction.login()");return "success";}@Overridepublic String execute() throws Exception {return null;}
}

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3、既不繼承也不實現任何的方法

public class UserAction {private String userName;public void setUserName(String userName) {this.userName = userName;}// Action中業務處理方法public String login() {System.out.println("UserAction.login()" + userName);return "login";}public String register() {System.out.println("register()" + userName);return "register";}
}

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動態方法調用