node入门-学习笔记

ゝ一纸荒年。 2022-08-31 06:52 210阅读 0赞

### 文章目录 ###

*   *  node入门-学习笔记
     *  node
     *  启动node服务
     *  重构express-run

## node入门-学习笔记 ##

## node ##

*  为什么后端要用node, 因为它是js
 *  js运行时环境
 *  主要使用express框架， 能够快速搭建后端服务接口

## 启动node服务 ##

*  注意切换目录
 *  创建package.json， `npm init -y`
 *  安装依赖包 `cnpm i -S express body-parser`
 *  启动`node express-run.js`
 *  可以把上面的命令写入package.json，然后`npm run start`
 *  停止`ctrl+C`

//package.json
    { 
      "name": "0",
      "version": "1.0.0",
      "description": "",
      "main": "express-run.js",
      "scripts": { 
        "start": "node express-run.js"
      },
      "keywords": [],
      "author": "",
      "license": "ISC",
      "dependencies": { 
        "body-parser": "^1.19.0",
        "express": "^4.17.1"
      }
    }

//express-run.js
    //加载依赖包
    var express = require("express")
    var bodyParser = require('body-parser'); //http解析
    
    var app = express();
    //跨域处理
    var allowCrossDomain = function (req, res, next) { 
     res.header('Access-Control-Allow-Origin', '*');
     res.setHeader('Access-Control-Allow-Methods', '*');
     res.setHeader('Access-Control-Allow-Headers', '*');
     next();
    };
    app.use(allowCrossDomain);
    
    app.use(bodyParser.json()); //解析前端发送的json数据
    app.use(bodyParser.urlencoded({ extended: true})); //解析前端发表单数据
    
    //定义接口 http://localhost:3000/
    app.get("/", function(req, res){ 
    	res.send('index')  //接口返回字符串
    })
    //启动服务
    app.listen(3000, function(){ console.log("Server started on port 3000.")});

## 重构express-run ##

*  模块化import/export
 *  es6、babel
 *  现在只有一个文件，包装多层套路
 *  功能：访问db，记录日志，方便配置, 方便维护
 *  支持es6语法需要添加`.babelrc`, 配置babel及模块化支持
 *  添加`babel-node`,它会在运行时使用.babelrc把代码进行编译
 *  `cnpm i -S babel-cli babel-preset-env babel-plugin-add-module-exports`
 *  根目录添加入口main.js, 从入口运行
 *  需要导出myexpress模块并且把listen方法也要导出到外边去，需要用到`promise`，与vue相同
 *  若不把listen放到main.js，可能main.js没有执行完就开始监听了。
 *  node-promise: **bluebird**,**node8.util.promisify**

**.babelrc文件：**

{ 
        "presets": ["env"], //解析es6
        "plugins": ["add-module-exports"] //支持export
    }

**main.js文件**

import express from './config/myexpress'
    
    const server = express(); //server.listenAsync ==== promise
    //配置文件处理---取端口号---port
    const port = 3000;
    //xxxx
    //xxxx
    //xxxx
    server.listenAsync(port).then(()=>{ 
        console.log("Server started on port 3000.")
    })

//package.json
    { 
      "name": "0",
      "version": "1.0.0",
      "description": "",
      "main": "myexpress.js",
      "scripts": { 
        "start": "babel-node main.js"
      },
      "keywords": [],
      "author": "",
      "license": "ISC",
      "dependencies": { 
        "babel-cli": "^6.26.0",
        "babel-node": "^0.0.1-security",
        "babel-plugin-add-module-exports": "^1.0.2",
        "babel-preset-env": "^1.7.0",
        "body-parser": "^1.19.0",
        "express": "^4.17.1"
      }
    }

**config文件夹下myexpress.js文件：**

//导入依赖包
    import util from 'util'
    import express from 'express'
    import bodyParser from 'body-parser'
    
    export default () => { 
        var app = express();
    
        // 使用promise方式将app.listen导出到外边
        app.listenAsync = util.promisify(app.listen); //node8.x提供的
    
        //跨域处理
        var allowCrossDomain = function (req, res, next) { 
            res.header('Access-Control-Allow-Origin', '*');
            res.setHeader('Access-Control-Allow-Methods', '*');
            res.setHeader('Access-Control-Allow-Headers', '*');
            next();
        };
        app.use(allowCrossDomain);
    
        app.use(bodyParser.json()); //解析前端发送的json数据
        app.use(bodyParser.urlencoded({ extended: true})); //解析前端发表单数据
    
        //定义接口 http://localhost:3000/
        app.get("/", function(req, res){ 
            res.send('index')  //接口返回字符串
        })
        //启动服务
        //app.listen(3000, function(){console.log("Server started on port 3000.")});
        return app; //返回promise
    }

自己模拟接口：（例子）

/**Connect是一个node中间件（middleware）框架。 如果把一个http处理过程比作是污水处理，中间件就像是一层层的过滤网。 每个中间件在http处理过程中通过改写request或（和）response的数据、状态，实现了特定的功能。 中间件就是类似于一个过滤器的东西，在客户端和应用程序之间的一个处理请求和响应的的方法。*/
    
    var connect = require('connect');  //创建连接 
    var bodyParser = require('body-parser');   //body解析 用于处理 JSON, Raw, Text 和 URL 编码的数据。
    var lists = [];
    var index = 1; //id
    var arr = [
    	[100, 422, 435, 934, 244, 26, 643],
    	[324, 663, 300, 934, 325, 325, 626],
    	[643, 222, 326, 325, 1290, 2664, 364],
    	[2344, 666, 300, 934, 325, 1330, 1320],
    	[432, 743, 326, 934, 263, 353, 326]
    ];
    
    var app = connect()
        .use(bodyParser.json())   //JSON解析
        .use(bodyParser.urlencoded({ extended: true}))
    	//use()方法还有一个可选的路径字符串，对传入请求的URL的开始匹配。
    	//use方法来维护一个中间件队列
    	.use(function (req, res, next) { 
    		//跨域处理
    		// Website you wish to allow to connect
            res.setHeader('Access-Control-Allow-Origin', '*');  //允许任何源
            // Request methods you wish to allow
            res.setHeader('Access-Control-Allow-Methods', 'GET, POST, OPTIONS, PUT, PATCH, DELETE');  //允许任何方法
            // Request headers you wish to allow
            res.setHeader('Access-Control-Allow-Headers', '*');   //允许任何类型
    		res.writeHead(200, { "Content-Type": "text/plain;charset=utf-8"});    //utf-8转码
    		next();  //next 方法就是一个递归调用
    	})
    	.use('/get_table', function(req, res, next) {    //获取全选表格数据
    		var data={ 
                    "code": "200",
                    "msg": "success",
                    "result": [
    					{ name:'张东阳',sex:'男',city:'香港',check:true,id:1},
    					{ name:'严雷',sex:'男',city:'北京',check:false},
    					{ name:'袁彦彦',sex:'女',city:'湖北',check:false},
    					{ name:'苏方安',sex:'男',city:'广东',check:true},
    					{ name:'余勇',sex:'男',city:'天津',check:false},
    					{ name:'许康',sex:'男',city:'上海',check:false},
    					{ name:'鲁小微',sex:'女',city:'广西',check:false}
    				]
                }
                res.end(JSON.stringify(data));
    			next();      //
    	})
    	.use('/get_category', function(req, res, next) {    //获取全选表格数据
    		var data={ 
                    "code": "200",
                    "msg": "success",
                    "result": [{ title:'在线咨询',icon:'icon-shenghuo',color:'#f95730'},
    				{ title:'产品介绍',icon:'icon-11',color:'#fa69b9'},
    				{ title:'活动动态',icon:'icon-jiazheng',color:'#49dacf'},
    				{ title:'限时抢购',icon:'icon-jiaoyu',color:'#908cfd'},
    				{ title:'免费领水果',icon:'icon-jiajujiafang',color:'#92d85c'},
    				{ title:'红包签到',icon:'icon-peizhi',color:'#ab65ab'},
    				{ title:'生活服务',icon:'icon-shengji',color:'#ea4952'},
    				{ title:'充值中心',icon:'icon-xin',color:'#1eb5fb'},
    				{ title:'美食娱乐',icon:'icon-duankailianjie',color:'#ecbe35'}]
                }
                res.end(JSON.stringify(data));
    			next();      //
    	})
    	.use('/get_tablist', function(req, res, next) { 
    		var data = { 
    				"code": "200",
                    "msg": "success",
                    "result": [
                            { name: '张一',con:'北京'}, 
                            { name: '张二',con:'武汉'}, 
                            { name: '张三',con:'长沙'}, 
                            { name: '张四',con:'南京'}, 
                            { name: '张五',con:'重庆'}]
    			}
    		res.end(JSON.stringify(data));
    		next();
    	})
    	.use('/tablist', function(req, res, next) {    //获取全选表格数据
    		var data={ 
                    "code": "200",
                    "msg": "success",
                    "result": [{ 
    					date: '2020-03-02',
    					name: '张三',
    					address: '上海市普陀区金沙江路 1518 号',
    					tag: '家'
    				  }, { 
    					date: '2020-03-04',
    					name: '李四',
    					address: '北京市海淀区苏家坨乡前沙涧村',
    					tag: '公司'
    				  }, { 
    					date: '2020-03-01',
    					name: '王小虎',
    					address: '王府井世都百货 王府井大街99号B3',
    					tag: '公司'
    				  }, { 
    					date: '2020-03-13',
    					name: '李大虎',
    					address: '北京市海淀区首体南路1号 ',
    					tag: '家'
    				  },
    				  { 
    					date: '2020-03-14',
    					name: '周深',
    					address: '北京市海淀区买卖街40号 ',
    					tag: '公司'
    				  },
    				  { 
    					date: '2020-03-11',
    					name: '李可爱',
    					address: '北京宣武区广安门外大街三义东里东16-2甲8号 ',
    					tag: '家'
    				  }]
                }
                res.end(JSON.stringify(data));
    			next();      //
    	})
    	.use('/get_chart', function(req, res, next) {    //获取图表数据
    		var random = arr[parseInt(Math.random()*arr.length)];
    		var data={ 
                    "code": "200",
                    "msg": "success",
                    "result": random
                }
                res.end(JSON.stringify(data));
    			next();  
    	})
    	.use('/student_location', function(req, res, next) {    //获取全选表格数据
    		var data={ 
                    "code": "200",
                    "msg": "success",
                    "result": [
    					{ name:'北京',value:1081},
    				    { name:'上海',value:400},
    				    { name:'湖北',value:280},
    				    { name:'广东',value:450},
    				    { name:'四川',value:46},
    					{ name:'黑龙江',value:3},
    					{ name:'吉林',value:24},
    					{ name:'辽宁',value:5},
    					{ name:'内蒙古',value:14},
    					{ name:'天津',value:26},
    					{ name:'河北',value:110},
    					{ name:'山东',value:153},
    					{ name:'山西',value:35},
    					{ name:'河南',value:26},
    					{ name:'江苏',value:436},
    					{ name:'浙江',value:64},
    					{ name:'福建',value:226},
    					{ name:'台湾',value:15},
    					{ name:'海南',value:54},
    					{ name:'安徽',value:426},
    					{ name:'陕西',value:26},
    					{ name:'重庆',value:150},
    					{ name:'贵州',value:243},
    					{ name:'云南',value:16},
    					{ name:'甘肃',value:2},
    					{ name:'青海',value:5},
    					{ name:'西藏',value:11},
    					{ name:'新疆',value:6}
    				]
                }
                res.end(JSON.stringify(data));
    			next();      //
    	})
    	.use('/get_table2', function(req, res, next) {    //获取全选表格数据
    		var data={ 
                    "code": "200",
                    "msg": "success",
                    "result": [
    					{ data1:576,data2:853,data3:688,data4:589,data5:907,data6:1033,data7:325},
    					{ data1:635,data2:363,data3:437,data4:659,data5:907,data6:378,data7:378},
    					{ data1:364,data2:447,data3:543,data4:745,data5:437,data6:1033,data7:325},
    					{ data1:375,data2:754,data3:754,data4:458,data5:543,data6:464,data7:544},
    				]
                }
                res.end(JSON.stringify(data));
    			next();      //
    	})
    	.use('/get_city', function(req, res, next) {    //获取city
    		var data={ 
                    "code": "200",
                    "msg": "success",
                    "result": [
    					{ 
    						name: "北京",
    						sub: [
    							{ name: "请选择", sub: []},
    							{ 
    								name: "北京",
    								sub: [{ name: "请选择"}, { name: "东城区"}, { name: "西城区"}, { name: "崇文区"}, { name: "宣武区"}, { name: "朝阳区"}, { name: "海淀区"}, { name: "丰台区"}, { name: "石景山区"}, { name: "房山区"}, { name: "通州区"}, { name: "顺义区"}, { name: "昌平区"}, { name: "大兴区"}, { name: "怀柔区"}, { name: "平谷区"}, { name: "门头沟区"}, { name: "密云县"}, { name: "延庆县"}]
    							}]
    					},
    					{ 
    						name: "广东",
    						sub: [
    							{ name: "请选择", sub: []},
    							{ 
    								name: "广州",
    								sub: [{ name: "请选择"}, { name: "越秀区"}, { name: "荔湾区"}, { name: "海珠区"}, { name: "天河区"}, { name: "白云区"}, { name: "黄埔区"}, { name: "番禺区"}, { name: "花都区"}, { name: "南沙区"}, { name: "萝岗区"}, { name: "增城市"}, { name: "从化市"}]
    							},
    							{ 
    								name: "深圳",
    								sub: [{ name: "请选择"}, { name: "福田区"}, { name: "罗湖区"}, { name: "南山区"}, { name: "宝安区"}, { name: "龙岗区"}, { name: "盐田区"}]
    							},
    							{ 
    								name: "珠海",
    								sub: [{ name: "请选择"}, { name: "香洲区"}, { name: "斗门区"}, { name: "金湾区"}],
    							},
    							{ 
    								name: "汕头",
    								sub: [{ name: "请选择"}, { name: "金平区"}, { name: "濠江区"}, { name: "龙湖区"}, { name: "潮阳区"}, { name: "潮南区"}, { name: "澄海区"}, { name: "南澳县"}]
    							}]
    					},
    					{ 
    						name: "上海",
    						sub: [{ name: "请选择", sub: []},
    							{ 
    								name: "上海",
    								sub: [{ name: "请选择"}, { name: "黄浦区"}, { name: "卢湾区"}, { name: "徐汇区"}, { name: "长宁区"}, { name: "静安区"}, { name: "普陀区"}, { name: "闸北区"}, { name: "虹口区"}, { name: "杨浦区"}, { name: "宝山区"}, { name: "闵行区"}, { name: "嘉定区"}, { name: "松江区"}, { name: "金山区"}, { name: "青浦区"}, { name: "南汇区"}, { name: "奉贤区"}, { name: "浦东新区"}, { name: "崇明县"}]
    							}]
    					},
    					{ 
    						name: "重庆",
    						sub: [{ name: "请选择", sub: []},
    							{ 
    								name: "重庆",
    								sub: [{ name: "请选择"}, { name: "渝中区"}, { name: "大渡口区"}, { name: "江北区"}, { name: "南岸区"}, { name: "北碚区"}, { name: "渝北区"}, { name: "巴南区"}, { name: "长寿区"}, { name: "双桥区"}, { name: "沙坪坝区"}, { name: "万盛区"}, { name: "万州区"}, { name: "涪陵区"}, { name: "黔江区"}, { name: "永川区"}, { name: "合川区"}, { name: "江津区"}, { name: "九龙坡区"}, { name: "南川区"}, { name: "綦江县"}, { name: "潼南县"}, { name: "荣昌县"}, { name: "璧山县"}, { name: "大足县"}, { name: "铜梁县"}, { name: "梁平县"}, { name: "开县"}, { name: "忠县"}, { name: "城口县"}, { name: "垫江县"}, { name: "武隆县"}, { name: "丰都县"}, { name: "奉节县"}, { name: "云阳县"}, { name: "巫溪县"}, { name: "巫山县"}, { name: "石柱土家族自治县"}, { name: "秀山土家族苗族自治县"}, { name: "酉阳土家族苗族自治县"}, { name: "彭水苗族土家族自治县"}]
    							}]
    					},
    					{ 
    						name: "湖北",
    						sub: [{ name: "请选择", sub: []},
    							{ 
    								name: "武汉",
    								sub: [{ name: "请选择"}, { name: "江岸区"}, { name: "武昌区"}, { name: "江汉区"}, { name: "硚口区"}, { name: "汉阳区"}, { name: "青山区"}, { name: "洪山区"}, { name: "东西湖区"}, { name: "汉南区"}, { name: "蔡甸区"}, { name: "江夏区"}, { name: "黄陂区"}, { name: "新洲区"}]
    							},
    							{ 
    								name: "黄石",
    								sub: [{ name: "请选择"}, { name: "黄石港区"}, { name: "西塞山区"}, { name: "下陆区"}, { name: "铁山区"}, { name: "大冶市"}, { name: "阳新县"}]
    							},
    							{ 
    								name: "十堰",
    								sub: [{ name: "请选择"}, { name: "张湾区"}, { name: "茅箭区"}, { name: "丹江口市"}, { name: "郧县"}, { name: "竹山县"}, { name: "房县"}, { name: "郧西县"}, { name: "竹溪县"}]
    							},
    							{ 
    								name: "荆州",
    								sub: [{ name: "请选择"}, { name: "沙市区"}, { name: "荆州区"}, { name: "洪湖市"}, { name: "石首市"}, { name: "松滋市"}, { name: "监利县"}, { name: "公安县"}, { name: "江陵县"}]
    							},
    							{ 
    								name: "宜昌",
    								sub: [{ name: "请选择"}, { name: "西陵区"}, { name: "伍家岗区"}, { name: "点军区"}, { name: "猇亭区"}, { name: "夷陵区"}, { name: "宜都市"}, { name: "当阳市"}, { name: "枝江市"}, { name: "秭归县"}, { name: "远安县"}, { name: "兴山县"}, { name: "五峰土家族自治县"}, { name: "长阳土家族自治县"}]
    							},
    							{ 
    								name: "襄樊",
    								sub: [{ name: "请选择"}, { name: "襄城区"}, { name: "樊城区"}, { name: "襄阳区"}, { name: "老河口市"}, { name: "枣阳市"}, { name: "宜城市"}, { name: "南漳县"}, { name: "谷城县"}, { name: "保康县"}]
    							}]
    						}]
                }
                res.end(JSON.stringify(data));
    			next();      //
    	})
    	.use('/get_chart2', function(req, res, next) {    //获取疫情地图数据
    		var data={ 
                    "code": "200",
                    "msg": "success",
                    "result": [
    					{ 
    						date:"2020-1-26",
    						definite: 769,    //确诊
    						distrust: 3806    //疑似
    					},
    					{ 
    						date:"2020-1-27",
    						definite: 1771,
    						distrust: 2077
    					},
    					{ 
    						date:"2020-1-28",
    						definite: 1459,
    						distrust: 3248
    					},
    					{ 
    						date:"2020-1-29",
    						definite: 1737,
    						distrust: 4148
    					},
    					{ 
    						date:"2020-1-30",
    						definite: 1982,
    						distrust: 4812
    					},
    					{ 
    						date:"2020-1-31",
    						definite: 2102,
    						distrust: 5019
    					},
    					{ 
    						date:"2020-2-1",
    						definite: 2590,
    						distrust: 4562
    					},
    					{ 
    						date:"2020-2-2",
    						definite: 2829,
    						distrust: 5173
    					},
    					{ 
    						date:"2020-2-3",
    						definite: 3235,
    						distrust: 5072
    					},
    					{ 
    						date:"2020-2-4",
    						definite: 3887,
    						distrust: 3971
    					},
    					{ 
    						date:"2020-2-5",
    						definite: 3694,
    						distrust: 5328
    					},
    					{ 
    						date:"2020-2-6",
    						definite: 3151,
    						distrust: 4833
    					},
    					{ 
    						date:"2020-2-7",
    						definite: 3399,
    						distrust: 4214
    					},
    					{ 
    						date:"2020-2-8",
    						definite: 2653,
    						distrust: 3916
    					},
    					{ 
    						date:"2020-2-9",
    						definite: 3073,
    						distrust: 4008
    					},
    					{ 
    						date:"2020-2-10",
    						definite: 2484,
    						distrust: 3536
    					},
    					{ 
    						date:"2020-2-11",
    						definite: 2022,
    						distrust: 3342
    					},
    					{ 
    						date:"2020-2-12",
    						definite: 15153,
    						distrust: 2807
    					},
    					{ 
    						date:"2020-2-13",
    						definite: 5093,
    						distrust: 2450
    					},
    					{ 
    						date:"2020-2-14",
    						definite: 2644,
    						distrust: 2277
    					},
    					{ 
    						date:"2020-2-15",
    						definite: 2009,
    						distrust: 1918
    					},
    					{ 
    						date:"2020-2-16",
    						definite: 2051,
    						distrust: 1563
    					},
    					{ 
    						date:"2020-2-17",
    						definite: 1891,
    						distrust: 1432
    					},
    					{ 
    						date:"2020-2-18",
    						definite: 1751,
    						distrust: 1185
    					},
    					{ 
    						date:"2020-2-19",
    						definite: 825,
    						distrust: 1277
    					},
    					{ 
    						date:"2020-2-20",
    						definite: 892,
    						distrust: 1614
    					},
    					{ 
    						date:"2020-2-21",
    						definite: 399,
    						distrust: 1614
    					},
    					{ 
    						date:"2020-2-22",
    						definite: 649,
    						distrust: 882
    					},
    					{ 
    						date:"2020-2-23",
    						definite: 416,
    						distrust: 620
    					},
    				]
                }
                res.end(JSON.stringify(data));
    			next();      //
    	})
    	.use('/get_lists', function(req, res, next) {    //获取图表数据
    		var data={ 
                    "code": "200",
                    "msg": "success",
                    "result": [
    					{ 
    						name:'家用电器',
    						icon:'icon-shenghuo',
    						subItems:[
    							{ name:'电视'},
    							{ name:'空调'},
    							{ name:'洗衣机'},
    							{ name:'冰箱'}
    						]
    					},
    					{ 
    						name:'电脑/办公',
    						icon:'icon-jiajujiafang',
    						subItems:[
    							{ name:'电脑整机'},
    							{ name:'电脑配件'},
    							{ name:'外设产品'}
    						]
    					},
    					{ 
    						name:'食品/酒类/生鲜',
    						icon:'icon-licai',
    						subItems:[
    							{ name:'新鲜水果'},
    							{ name:'蔬菜蛋品'},
    							{ name:'海鲜水产'}
    						]
    					},
    					{ 
    						name:'手机/数码',
    						icon:'icon-11',
    						subItems:[
    							{ name:'手机通讯'},
    							{ name:'运营商'},
    							{ name:'数码配件'},
    							{ name:'手机配件'}
    						]
    					},
    					{ 
    						name:'理财/众筹/白条',
    						icon:'icon-jiaoyu',
    						subItems:[
    							{ name:'理财'},
    							{ name:'众筹'},
    							{ name:'东家'},
    							{ name:'白条'}
    						]
    					}
    				]
                }
                res.end(JSON.stringify(data));
    			next();  
    	})
    	.use('/form_login', function(req, res, next) { 
    		var data;
    		if(req.method=='POST') { 
    			if(req.body.mobile=='13987654321'&&req.body.password=='admin123'){ 
    				data = { "code":200,"msg":"success"};
    			}else{ 
    				data = { "code":201,"msg":"用户名&密码不匹配"};
    			}
    			res.end(JSON.stringify(data));
    		} else { 
    			res.end(JSON.stringify({ }));
    		}
    		next();    //
    	})
    	.use('/form_register', function(req, res, next) { 
    		var data = { "code":200,"msg":"success"}
    		if(req.method=='POST') { 
    			res.end(JSON.stringify(data));
    		} else { 
    			res.end(JSON.stringify({ }));
    		}
    		next();    //
    	})
    	.use('/get_login', function(req, res, next) { 
    		var data;
    		if(req.method=='POST') { 
    			if(req.body.user=='admin123'&&req.body.password=='admin123'){ 
    				data = { "code":200,"msg":"success"};
    			}else{ 
    				data = { "code":201,"msg":"用户名&密码不匹配"};
    			}
    			res.end(JSON.stringify(data));
    		} else { 
    			res.end(JSON.stringify({ }));
    		}
    		next();    //
    	})
    	.use('/get_nav', function(req, res, next) { 
    		var data={ 
    			"code": "200",
    			"msg": "success",
    			"result": [
    			  { 
    				name:'首页',
    				icon:'icon-yonghu',
    				url:'/index',
    				child:[]
    			  },
    			  { name:'数据统计',
    				icon:'icon-jiaoyu',
    				url:'/stats',
    			  },
    			  { name:'信息管理',
    				icon:'icon-11',
    				url:'/wms',
    				child:[
    				  { name:'列表展示',url:'/wms/list'}
    				]
    			  },
    			  { name:'用户管理',
    				icon:'icon-xin',
    				url:'/user',
    				child:[
    				  { name:'用户统计',url:'/user/stats'},
    				  { name:'角色统计',url:'/user/role'}
    				]
    			  }
    		  ]
    		}
    		res.end(JSON.stringify(data));
    		next();
    	})
    	.use('/list_get', function(req, res, next) { 
    		var data={ 
                    "code": "200",
                    "msg": "success",
                    "result": lists
                }
                res.end(JSON.stringify(data));
    			next();      //
    	})
    	.use('/list_add', function(req, res, next) { 
    		if(req.method=='POST') { 
    			console.log(req.body.name);
    			lists.push({ name:req.body.name,state:req.body.state,id:index++});
    			console.log(lists);
    			var data = { "code":200,"msg":"success"};
    			res.end(JSON.stringify(data));
    		} else { 
    			res.end(JSON.stringify({ }));
    		}
    		next();    //
    	})
    	.use('/list_del', function(req, res, next) { 
    	
    		console.log(req.body.id);
    		for(var i=0; i<lists.length;i++){ 
    			if(req.body.id==lists[i].id){ 
    				lists.splice(i,1)
    			}
    		}
    		console.log(lists);
    		var data = { "code":200,"msg":"success"};
    		res.end(JSON.stringify(data));
    		
    	})
    	.listen(3333);
    console.log('Server started on port 3333.');