Strut2注解开发

注解开发hello实例

1.导入13个基础jar包和struts2-convention-plugin-2.3.15.3.jar

Action代码如下

package cn.ita.action;

import org.apache.struts2.convention.annotation.Action;

import com.opensymphony.xwork2.ActionSupport;
public class HelloAction extends ActionSupport{
@Action(value="hello")
public String execute() throws Exception {
System.out.println("hello");
    return NONE;
}
}

通过浏览器访问http://localhost:8080/demo2/hello.action，将会看到控制台打印出信息，证明方法被调用

配置结果集代码如下

package cn.ita.action;

import org.apache.struts2.convention.annotation.Action;
import org.apache.struts2.convention.annotation.Result;

import com.opensymphony.xwork2.ActionSupport;

//默认值，继承包，可以使用包里面的配置
@ParentPackage("struts-default")
//默认值，名称空间
@Namespace("/")
//全局结果集
@Result(name="success",location="/t1.jsp")
public class HelloAction extends ActionSupport{
@Action(value="hello")
public String execute() throws Exception {
System.out.println("hello");
    return SUCCESS;
}
//局部结果集,只对方法生效
@Action(value="add",results={@Result(name="success",location="/t2.jsp")
        //,@Result(name="success",location="/t2.jsp")可以配置多个的结果集
        })
public String add() throws Exception {
    System.out.println("add");
    return SUCCESS;
}
public String delete() throws Exception {
    System.out.println("delete");
    return SUCCESS;
}
}