Question

怎么把Struts2中的Action运行结果打印到jsp上 求高手指点：

package cjs;

import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.sql.Connection;

public class Hello {

/**
* @param args
* @return
* @throws SQLException
*/
public static void main(String args[])throws SQLException {
String driverName="oracle.jdbc.OracleDriver";
String dbUrl="jdbc:oracle:thin:@192.168.0.153:1521:orcl";

Connection conn=null;
try {
Class.forName(driverName);

} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
conn =(Connection) DriverManager.getConnection(dbUrl,"supermarket","www");
Statement st=conn.createStatement();
String s2="select * from POSITION";
ResultSet rt=st.executeQuery(s2);
while(rt.next())
{System.out.println(rt.getString("POS_ID")+rt.getString("POS_NAME")+rt.getString("POS_INFO")+rt.getString("STATE")
+rt.getString("STATEDATE"));}

}
public String execute()
{return "success";}}

Answer 1

直接用actioncontext。getcontext（）。getsession（）。put（“a”，“打印的值”）；
让后在页面$｛a｝, 其实还可以在这个类里面创建打印值 并实现他的get，set方法！在也面直$(打印值)就ok了;

Answer 2

关于struts2接收和传递web数据 就两种方式 楼上各位都用到了
我总结下 一种是实现接口 SessionAware,ServletRequestAware,ServletResponseAware 来获得相应的web对象 进行数据的交互
还有种就是 ActionContext content = ActionContext.getContext();
然后可以将值放入值栈中Map session = content.getSession(); session.put(key,value)
HttpServletRequest request = (HttpServletRequest) content
.get(StrutsStatics.HTTP_REQUEST);

当然用HttpServletRequest request = ServletActionContext.getRequest();
也是OK的

Answer 3

实现sessionaware 等啊 然后调用session中的东西 或者弄到其他的比如response对象直接搞打印 有思路了没

Answer 4

HttpServletRequest request = ServletActionContext.getRequest();
request.setAttribute("ttt", 要输出的值);

然后再页面中用${ttt } 就可以了