src/com/controller/CateController.java

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package com.controller;

import java.io.IOException;

import java.io.PrintWriter;
import java.util.HashMap;

import java.util.List;
import java.util.Map;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;

import com.entity.Cate;
import com.entity.Users;
import com.server.CateServer;
import com.util.PageBean;

import net.sf.json.JSONObject;

@Controller
public class CateController {
	@Resource
	private CateServer cateService;
	

	@RequestMapping("admin/addCate.do")
	public void addCate(Cate Cate,HttpServletResponse response){
		   Map<String, Object> map=new HashMap<String, Object>();
		   map.put("catename", Cate.getCatename());
		   System.out.println("uname==="+cateService.checkUname(map));
		   JSONObject obj=new JSONObject();
		   if(cateService.checkUname(map)!=null){
				 obj.put("info", "ok");
			   }else{
				   Cate addr=new Cate();
				   addr.setCatename(Cate.getCatename());
				   cateService.add(addr);
				   obj.put("info", "添加成功！");
				  
			   }
		   response.setContentType("text/html;charset=utf-8");
		   PrintWriter out=null;
		   try {
			out=response.getWriter();
			out.print(obj);
			out.flush();
		} catch (IOException e) {
			e.printStackTrace();
		}finally{
			out.close();
		}
		   
	}