areaaction.java~

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package com.cargo.crotrol;

import org.apache.struts.action.*;
import javax.servlet.http.*;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionForm;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.cargo.db.*;
import com.cargo.db.Areadb;
import java.util.Collection;
import java.util.ArrayList;
import com.cargo.filter.Line;

public class AreaAction extends Action implements Keywords{
    private ActionErrors errors=new ActionErrors();
    private Areadb db=new Areadb();
    private int t;
    private Line line=new Line();
    private ActionForward forward=new ActionForward();
    //总体Action
    public ActionForward perform(ActionMapping actionMapping, ActionForm actionForm, HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse) {
        /**@todo: complete the business logic here, this is just a skeleton.*/
        AreaForm form = (AreaForm) actionForm;
        HttpServletRequest request=httpServletRequest;
        String action =actionMapping.getParameter();
        forward=line.down(httpServletRequest);
        if(forward.getName().equals("failure"))
            return forward;
        if("".equalsIgnoreCase(action)){
            forward=actionMapping.findForward("failure");
        }else if("view".equalsIgnoreCase(action)){
            forward=View(actionMapping,form,request,httpServletResponse);
        }else if("del".equalsIgnoreCase(action)){
            forward = Del(actionMapping, form, request,httpServletResponse);
        }else if("add".equalsIgnoreCase(action)){
            forward = Add(actionMapping, form, request,httpServletResponse);
        }else if("edit".equalsIgnoreCase(action)){
            forward = Edit(actionMapping, form, request,httpServletResponse);
        }else{
            forward=actionMapping.findForward("failure");
        }
        return forward;
    }
    //删除Action
    private ActionForward Del(ActionMapping mapping,
                              AreaForm actionForm,
                              HttpServletRequest request,
                              HttpServletResponse httpServletResponse) {
        String id=request.getParameter("areadel").toString();
        t=db.delete(DELETE+"tb_area"+WHERE+"id="+id);
        if(t<=0){
            errors.clear();
            errors.add("deletefail",new ActionError("error.delete.fail"));
            saveErrors(request,errors);
        }
        return mapping.findForward("success");
    }
    //添加Action
    private ActionForward Add(ActionMapping mapping,
                              AreaForm actionForm,
                              HttpServletRequest request,
                              HttpServletResponse httpServletResponse) {
        t=db.insert(actionForm.getArea());
        if(t<=0){
            errors.clear();
            errors.add("insertfail",new ActionError("error.insert.fail"));
            saveErrors(request,errors);
            return (new ActionForward(mapping.getInput()));
        }
        return mapping.findForward("success");
    }
    //查看Action
    private ActionForward View(ActionMapping mapping, AreaForm form,
                                   HttpServletRequest request,
                                   HttpServletResponse response) {
        Collection coll=new ArrayList();
        coll=db.select();
        if(coll==null||coll.isEmpty()){
            errors.clear();
            errors.add("nodata",new ActionError("error.data.null"));
            saveErrors(request,errors);
        }
        request.setAttribute("Area",coll);
        return mapping.findForward("success");
    }
}