lvyuou/CommonController.java

package com.spring.controller;

import dao.CommDAO;
import net.jntoo.db.Query;
import com.alibaba.fastjson.*;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import util.Request;

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

/**
 * 公共路由
 */
@Controller
public class CommonController extends BaseController{

    /**
     * 使用ajax 检测某表中某个字段是否已存在，已存在则无法提交
     * @return
     */
    @RequestMapping(value = "/checkno")
    @ResponseBody
    public String checkon()
    {
        String table = request.getParameter("table");
        String col   = request.getParameter("col");
        String checktype = request.getParameter("checktype");
        String value = request.getParameter(col);
        if(checktype.equals("insert")){
            if(Query.make(table).where(col , value).count() > 0){
                return "false";
            }else{
                return "true";
            }
        }else if(checktype.equals("update")){
            String id = request.getParameter("id") == null ? "" : request.getParameter("id");
            if(Query.make(table).where(col , value).where("id" , "neq" , id).count() > 0){
                return "false";
            }else{
                return "true";
            }
        }
        return "false";
    }

    /**
     * 审核数据，将是否审核改为已审核状态，点击一下 是 则变否， 点击一下 否 变为是
     * @return
     */
    @RequestMapping("/sh")
    @ResponseBody
    public String sh()
    {
        String yuan=request.getParameter("yuan");
        String id=request.getParameter("id");
        String tablename=request.getParameter("tablename");
        String sql="";
        if(yuan.equals("是"))
        {
            sql="update "+tablename+" set issh='否' where id="+id;
        }
        else
        {
            sql="update "+tablename+" set issh='是' where id="+id;
        }
        new CommDAO().commOper(sql);
        if(isAjax())
        {
            jsonResult("ok");
            return "";
        }
        return "<script>location.href='"+request.getHeader("Referer")+"';</script>";
    }

    /**
     * 获取表的某行数据
     * @return
     */
    @RequestMapping("/tableAjax")
    @ResponseBody
    public String tableFind()
    {
        String table = request.getParameter("table");
        String id = request.getParameter("id");
        Map map = Query.make(table).where("id" , id).find();
        //JSONObject json = JSONObject.parse(map);
        return JSON.toJSONString(map);//.toString();
    }

    /**
     *   获取某表得某行数据
     *
     */
    @RequestMapping("/selectView")
    public String selectView()
    {
        String key = request.getParameter("key");
        String table = request.getParameter("table");
        String value = request.getParameter("value");
        Map data = Query.make(table).where(key,value).find();
        return jsonResult(data);
    }

    /**
     *   获取某表得所有数据
     *
     */
    @RequestMapping("/selectAll")
    public String selectAll()
    {
        String table = request.getParameter("table");
        Query query = Query.make(table);
        if(request.getParameter("where") != null){
            JSONObject where = JSON.parseObject(Request.get("where"));
            for(Map.Entry entry:where.entrySet())
            {
                String key = (String)entry.getKey();
                Object value = entry.getValue();
                if(value instanceof JSONObject)
                {
                    JSONObject w = (JSONObject) value;
                    query.where(key , w.getString("exp") , w.getString("value"));
                }else if(value instanceof JSONArray){
                    JSONArray  w = (JSONArray) value;
                    query.where(key , (String) w.get(0) , w.get(1));
                }else{
                    query.where(key , value);
                }
            }
        }
        if(request.getParameter("limit")!=null)
        {
            query.limit(Request.get("limit"));
        }
        if(request.getParameter("order")!=null)
        {
            query.order(Request.get("order"));
        }
        if(request.getParameter("field")!=null)
        {
            query.field(Request.get("field"));
        }
        List list = query.select();
        return jsonResult(list);
    }

    /**
     * 搜索下拉某表的数据
     * @return
     */
    @RequestMapping("/selectUpdateSearch")
    @ResponseBody
    public String selectUpdateSearch()
    {
        String table = Request.get("table");
        Query query = Query.make(table);
        String limit = "50";
        JSONObject where = JSON.parseObject(Request.get("where"));
        for(Map.Entry entry:where.entrySet())
        {
            String key = (String)entry.getKey();
            Object value = entry.getValue();
            if("limit".equals(key)){
                limit = String.valueOf(value);
            }else{
                if(value instanceof JSONObject)
                {
                    JSONObject w = (JSONObject) value;
                    query.where(key , w.getString("exp") , w.getString("value"));
                }else if(value instanceof JSONArray){
                    JSONArray  w = (JSONArray) value;
                    query.where(key , (String) w.get(0) , w.get(1));
                }else{
                    query.where(key , value);
                }
            }
        }
        List list = query.order("id desc").limit(limit).select();
        return JSON.toJSONString(list);
    }

}