struts中合并多个Action用DispatchAction

建一个继承自DispatchAction的Action即可：

package blog;

import java.io.PrintWriter;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.actions.DispatchAction;

public class CRUDStudentAction extends DispatchAction {

    public ActionForward delete(ActionMapping mapping, ActionForm form,
            HttpServletRequest request, HttpServletResponse response) throws Exception {
        PrintWriter out = response.getWriter();
        out.println("delete operation");
        return null;
    }

    public ActionForward add(ActionMapping mapping, ActionForm form,
            HttpServletRequest request, HttpServletResponse response) throws Exception {
        PrintWriter out = response.getWriter();
        out.println("add operation");
        return null;
    }

    public ActionForward update(ActionMapping mapping, ActionForm form,
            HttpServletRequest request, HttpServletResponse response) throws Exception {
        PrintWriter out = response.getWriter();
        out.println("update operation");
        return null;
    }

    public ActionForward insert(ActionMapping mapping, ActionForm form,
            HttpServletRequest request, HttpServletResponse response) throws Exception {
        PrintWriter out = response.getWriter();
        out.println("insert operation");
        return null;
    }

    
}

在struts配置文件中加入：

<action-mappings>         
        <action path="/CRUDStudent" type="cn.itcast.CRUDStudentAction" parameter="operation"></action>
    </action-mappings>

访问方式：

http://localhost:8080/strutstest3/CRUDStudent.do?operation=update