原理：

　当select.jsp页面打开时，向服务器发送异步请求，得到所有省份的名称（文本数据）。然后使用每个省份名称创建<option>，添加到<select name=”province”>中。

　　并且为<select name=”province”>元素添加onchange事件监听。当选择的省份发生变化时，再向服务器发送异常请求，得到当前选中的省份下所有城市（XML数据）。然后客户端解析XML文档，使用每个城市名称创建<option>，添加到<select name=”city”>元素中。

代码实现：

前端页面

Web04\WebContent\ajax\select.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

  <head>

    <title>My JSP 'ajax5.jsp' starting page</title>

	<meta http-equiv="pragma" content="no-cache">

	<meta http-equiv="cache-control" content="no-cache">

	<meta http-equiv="expires" content="0">

	<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">

	<meta http-equiv="description" content="This is my page">

	<!--

	<link rel="stylesheet" type="text/css" href="styles.css">

	-->

<script type="text/javascript">

function createXMLHttpRequest() {

	try {

		return new XMLHttpRequest();//大多数浏览器

	} catch (e) {

		try {

			return ActvieXObject("Msxml2.XMLHTTP");//IE6.0

		} catch (e) {

			try {

				return ActvieXObject("Microsoft.XMLHTTP");//IE5.5及更早版本

			} catch (e) {

				alert("浏览器不支持");

				throw e;

			}

		}

	}

}

/*

 * 1. 在文档加载完毕时发送请求，得到所有省份名称，显示在<select name="province"/>中

 * 2. 在选择了新的省份时，发送请求（参数为省名称），得到xml文档，即<province>元素

 *   解析xml文档，得到其中所有的<city>，再得到每个<city>元素的内容，即市名，使用市名生成<option>，插入到<select name="city">元素中

 */

window.onload = function() {

	/*

	ajax四步，请求ProvinceServlet，得到所有省份名称

	使用每个省份名称创建一个<option>元素，添加到<select name="province">中

	*/

	var xmlHttp = createXMLHttpRequest();

	xmlHttp.open("GET", "/Web04/ProvinceServlet", true);

	xmlHttp.send(null);

	xmlHttp.onreadystatechange = function() {

		if(xmlHttp.readyState == 4 && xmlHttp.status == 200) {

			// 获取服务器的响应

			var text = xmlHttp.responseText;

			// 使用逗号分隔它，得到数组

			var arr = text.split(",");

			// 循环遍历每个省份名称，每个名称生成一个option对象，添加到<select>中

			for(var i = 0; i < arr.length; i++) {

				var op = document.createElement("option");//创建一个指名名称元素

				op.value = arr[i];//设置op的实际值为当前的省份名称

				var textNode = document.createTextNode(arr[i]);//创建文本节点

				op.appendChild(textNode);//把文本子节点添加到op元素中，指定其显示值

				document.getElementById("p").appendChild(op);

			}

		}

	};

	/*

	第二件事情：给<select name="province">添加改变监听

	使用选择的省份名称请求CityServlet，得到<province>元素(xml元素)！！！

	获取<province>元素中所有的<city>元素，遍历之！获取每个<city>的文本内容，即市名称

	使用每个市名称创建<option>元素添加到<select name="city">

	*/

	var proSelect = document.getElementById("p");

	proSelect.onchange = function() {

		var xmlHttp = createXMLHttpRequest();

		xmlHttp.open("POST", "/Web04/CityServlet", true);

		xmlHttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");

		xmlHttp.send("pname=" + proSelect.value);//把下拉列表中选择的值发送给服务器！

		xmlHttp.onreadystatechange = function() {

			if(xmlHttp.readyState == 4 && xmlHttp.status == 200) {

				/*

				把select中的所有option移除（除了请选择）

				*/

				var citySelect = document.getElementById("c");

				// 获取其所有子元素

				var optionEleList = citySelect.getElementsByTagName("option");

				// 循环遍历每个option元素，然后在citySelect中移除

				while(optionEleList.length > 1) {//子元素的个数如果大于1就循环，等于1就不循环了！

					citySelect.removeChild(optionEleList[1]);//总是删除1下标，因为1删除了，2就变成1了！

				}

				var doc = xmlHttp.responseXML;

				// 得到所有名为city的元素

				var cityEleList = doc.getElementsByTagName("city");

				// 循环遍历每个city元素

				for(var i = 0; i < cityEleList.length; i++) {

					var cityEle = cityEleList[i];//得到每个city元素

					var cityName;

					// 获取市名称

					if(window.addEventListener) {//处理浏览器的差异

						cityName = cityEle.textContent;//支持FireFox等浏览器

					} else {

						cityName = cityEle.text;//支持IE

					}

					// 使用市名称创建option元素，添加到<select name="city">中

					var op = document.createElement("option");

					op.value = cityName;

					// 创建文本节点

					var textNode = document.createTextNode(cityName);

					op.appendChild(textNode);//把文本节点追加到op元素中

					//把op添加到<select>元素中

					citySelect.appendChild(op);

				}

			}

		};

	};

};

</script>

  </head>

  <body>

<h1>省市联动</h1>

<select name="province" id="p">

  <option>===请选择省===</option>

</select>

　　　

<select name="city" id="c">

  <option>===请选择市===</option>

</select>

  </body>

</html>

　　

处理省份的servlet

Web04\src\ajax\ProvinceServlet.java

package ajax;

import java.io.IOException;

import java.io.InputStream;

import java.util.List;

import javax.servlet.ServletException;

import javax.servlet.annotation.WebServlet;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import org.dom4j.Attribute;

import org.dom4j.Document;

import org.dom4j.DocumentException;

import org.dom4j.io.SAXReader;

/**

 * Servlet implementation class ProvinceServlet

 */

@WebServlet("/ProvinceServlet")

public class ProvinceServlet extends HttpServlet {

	private static final long serialVersionUID = 1L;

	public void doGet(HttpServletRequest request, HttpServletResponse response)

		throws ServletException, IOException {

		response.setContentType("text/html;charset=utf-8");

		try {

			//创建解析器对象

			SAXReader reader = new SAXReader();

			//得到输入流

			InputStream input = this.getClass().getResourceAsStream("/china.xml");

			//得到document对象

			Document doc = reader.read(input);

			//查询所有的province的name属性,//province表示无限深度查询，/表示子节点

			List<Attribute> arrList = doc.selectNodes("//province/@name");

			//将所有的省份名称用逗号连接起来

			StringBuilder sb = new StringBuilder();

			for(int i=0;i<arrList.size();i++){

				sb.append(arrList.get(i).getValue());

				if(i<arrList.size()-1){

					sb.append(",");

				}

			}

			response.getWriter().print(sb);

		} catch (DocumentException e) {

			throw new RuntimeException();

		}

	}

}

　　

处理市数据的servlet

Web04\src\ajax\CityServlet.java

package ajax;

import java.io.IOException;

import java.io.InputStream;

import javax.servlet.ServletException;

import javax.servlet.annotation.WebServlet;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import org.dom4j.Document;

import org.dom4j.Element;

import org.dom4j.io.SAXReader;

/**

 * Servlet implementation class CityServlet

 */

@WebServlet("/CityServlet")

public class CityServlet extends HttpServlet {

	private static final long serialVersionUID = 1L;

	protected void doPost(HttpServletRequest request, HttpServletResponse response)

			throws ServletException, IOException {

		request.setCharacterEncoding("utf-8");

		//注意：发送xml这里要修改！！！

		response.setContentType("text/xml;charset=utf-8");

		try {

			//创建解析器对象

			SAXReader reader = new SAXReader();

			//得到输入流

			InputStream input = this.getClass().getResourceAsStream("/china.xml");

			//得到document对象

			Document doc = reader.read(input);

			//得到省份名称

			String pname = request.getParameter("pname");

			Element proEle = (Element) doc.selectSingleNode("//province[@name='" + pname + "']");

			//把元素转换成字符串

			String xmlStr = proEle.asXML();

			response.getWriter().print(xmlStr);

		} catch (Exception e) {

			throw new RuntimeException();

		}

	}

}

　　

Web04\src\china.xml

<?xml version="1.0" encoding="utf-8"?>

<china>

	<province name="北京">

		<city>东城区</city>

		<city>西城区</city>

		<city>崇文区</city>

		<city>宣武区</city>

		<city>朝阳区</city>

		<city>丰台区</city>

		<city>石景山区</city>

		<city>海淀区</city>

		<city>门头沟区</city>

		<city>房山区</city>

		<city>通州区</city>

		<city>顺义区</city>

		<city>昌平区</city>

		<city>大兴区</city>

		<city>怀柔区</city>

		<city>平谷区</city>

		<city>密云县</city>

		<city>延庆县</city>

	</province>

	<province name="天津">

		<city>和平区</city>

		<city>河东区</city>

		<city>河西区</city>

		<city>南开区</city>

		<city>河北区</city>

		<city>红桥区</city>

		<city>塘沽区</city>

		<city>汉沽区</city>

		<city>大港区</city>

		<city>东丽区</city>

		<city>西青区</city>

		<city>津南区</city>

		<city>北辰区</city>

		<city>武清区</city>

		<city>宝坻区</city>

		<city>宁河县</city>

		<city>静海县</city>

		<city>蓟县</city>

	</province>

	<province name="河北">

		<city>石家庄</city>

		<city>唐山</city>

		<city>秦皇岛</city>

		<city>邯郸</city>

		<city>邢台</city>

		<city>保定</city>

		<city>张家口</city>

		<city>承德</city>

		<city>沧州</city>

		<city>廊坊</city>

		<city>衡水</city>

	</province>

	<province name="山西">

		<city>太原</city>

		<city>大同</city>

		<city>阳泉</city>

		<city>长治</city>

		<city>晋城</city>

		<city>朔州</city>

		<city>晋中</city>

		<city>运城</city>

		<city>忻州</city>

		<city>临汾</city>

		<city>吕梁</city>

	</province>

	<province name="内蒙古">

		<city>呼和浩特</city>

		<city>包头</city>

		<city>乌海</city>

		<city>赤峰</city>

		<city>通辽</city>

		<city>鄂尔多斯</city>

		<city>呼伦贝尔</city>

		<city>巴彦淖尔</city>

		<city>乌兰察布</city>

		<city>兴安盟</city>

		<city>锡林郭勒盟</city>

		<city>阿拉善盟</city>

	</province>

	<province name="辽宁">

		<city>沈阳</city>

		<city>大连</city>

		<city>鞍山</city>

		<city>抚顺</city>

		<city>本溪</city>

		<city>丹东</city>

		<city>锦州</city>

		<city>营口</city>

		<city>阜新</city>

		<city>辽阳</city>

		<city>盘锦</city>

		<city>铁岭</city>

		<city>朝阳</city>

		<city>葫芦岛</city>

	</province>

	<province name="吉林">

		<city>长春</city>

		<city>吉林</city>

		<city>四平</city>

		<city>辽源</city>

		<city>通化</city>

		<city>白山</city>

		<city>松原</city>

		<city>白城</city>

		<city>延边</city>

	</province>

	<province name="黑龙江">

		<city>哈尔滨</city>

		<city>齐齐哈尔</city>

		<city>鸡西</city>

		<city>鹤岗</city>

		<city>双鸭山</city>

		<city>大庆</city>

		<city>伊春</city>

		<city>佳木斯</city>

		<city>七台河</city>

		<city>牡丹江</city>

		<city>黑河</city>

		<city>绥化</city>

		<city>大兴安岭</city>

	</province>

	<province name="上海">

		<city>黄浦区</city>

		<city>卢湾区</city>

		<city>徐汇区</city>

		<city>长宁区</city>

		<city>静安区</city>

		<city>普陀区</city>

		<city>闸北区</city>

		<city>虹口区</city>

		<city>杨浦区</city>

		<city>闵行区</city>

		<city>宝山区</city>

		<city>嘉定区</city>

		<city>浦东新区</city>

		<city>金山区</city>

		<city>松江区</city>

		<city>青浦区</city>

		<city>南汇区</city>

		<city>奉贤区</city>

		<city>崇明县</city>

	</province>

	<province name="江苏">

		<city>南京</city>

		<city>无锡</city>

		<city>徐州</city>

		<city>常州</city>

		<city>苏州</city>

		<city>南通</city>

		<city>连云港</city>

		<city>淮安</city>

		<city>盐城</city>

		<city>扬州</city>

		<city>镇江</city>

		<city>泰州</city>

		<city>宿迁</city>

	</province>

	<province name="浙江">

		<city>杭州</city>

		<city>宁波</city>

		<city>温州</city>

		<city>嘉兴</city>

		<city>湖州</city>

		<city>绍兴</city>

		<city>金华</city>

		<city>衢州</city>

		<city>舟山</city>

		<city>台州</city>

		<city>丽水</city>

	</province>

	<province name="安徽">

		<city>合肥</city>

		<city>芜湖</city>

		<city>蚌埠</city>

		<city>淮南</city>

		<city>马鞍山</city>

		<city>淮北</city>

		<city>铜陵</city>

		<city>安庆</city>

		<city>黄山</city>

		<city>滁州</city>

		<city>阜阳</city>

		<city>宿州</city>

		<city>巢湖</city>

		<city>六安</city>

		<city>亳州</city>

		<city>池州</city>

		<city>宣城</city>

	</province>

	<province name="福建">

		<city>福州</city>

		<city>厦门</city>

		<city>莆田</city>

		<city>三明</city>

		<city>泉州</city>

		<city>漳州</city>

		<city>南平</city>

		<city>龙岩</city>

		<city>宁德</city>

	</province>

	<province name="江西">

		<city>南昌</city>

		<city>景德镇</city>

		<city>萍乡</city>

		<city>九江</city>

		<city>新余</city>

		<city>鹰潭</city>

		<city>赣州</city>

		<city>吉安</city>

		<city>宜春</city>

		<city>抚州</city>

		<city>上饶</city>

	</province>

	<province name="山东">

		<city>济南</city>

		<city>青岛</city>

		<city>淄博</city>

		<city>枣庄</city>

		<city>东营</city>

		<city>烟台</city>

		<city>潍坊</city>

		<city>济宁</city>

		<city>泰安</city>

		<city>威海</city>

		<city>日照</city>

		<city>莱芜</city>

		<city>临沂</city>

		<city>德州</city>

		<city>聊城</city>

		<city>滨州</city>

		<city>荷泽</city>

	</province>

	<province name="河南">

		<city>郑州</city>

		<city>开封</city>

		<city>洛阳</city>

		<city>平顶山</city>

		<city>安阳</city>

		<city>鹤壁</city>

		<city>新乡</city>

		<city>焦作</city>

		<city>濮阳</city>

		<city>许昌</city>

		<city>漯河</city>

		<city>三门峡</city>

		<city>南阳</city>

		<city>商丘</city>

		<city>信阳</city>

		<city>周口</city>

		<city>驻马店</city>

	</province>

	<province name="湖北">

		<city>武汉</city>

		<city>黄石</city>

		<city>十堰</city>

		<city>宜昌</city>

		<city>襄樊</city>

		<city>鄂州</city>

		<city>荆门</city>

		<city>孝感</city>

		<city>荆州</city>

		<city>黄冈</city>

		<city>咸宁</city>

		<city>随州</city>

		<city>恩施</city>

		<city>神农架</city>

	</province>

	<province name="湖南">

		<city>长沙</city>

		<city>株洲</city>

		<city>湘潭</city>

		<city>衡阳</city>

		<city>邵阳</city>

		<city>岳阳</city>

		<city>常德</city>

		<city>张家界</city>

		<city>益阳</city>

		<city>郴州</city>

		<city>永州</city>

		<city>怀化</city>

		<city>娄底</city>

		<city>湘西</city>

	</province>

	<province name="广东">

		<city>广州</city>

		<city>韶关</city>

		<city>深圳</city>

		<city>珠海</city>

		<city>汕头</city>

		<city>佛山</city>

		<city>江门</city>

		<city>湛江</city>

		<city>茂名</city>

		<city>肇庆</city>

		<city>惠州</city>

		<city>梅州</city>

		<city>汕尾</city>

		<city>河源</city>

		<city>阳江</city>

		<city>清远</city>

		<city>东莞</city>

		<city>中山</city>

		<city>潮州</city>

		<city>揭阳</city>

		<city>云浮</city>

	</province>

	<province name="广西">

		<city>南宁</city>

		<city>柳州</city>

		<city>桂林</city>

		<city>梧州</city>

		<city>北海</city>

		<city>防城港</city>

		<city>钦州</city>

		<city>贵港</city>

		<city>玉林</city>

		<city>百色</city>

		<city>贺州</city>

		<city>河池</city>

		<city>来宾</city>

		<city>崇左</city>

	</province>

	<province name="海南">

		<city>海口</city>

		<city>三亚</city>

	</province>

	<province name="重庆">

		<city>重庆</city>

		<city>万州区</city>

		<city>涪陵区</city>

		<city>渝中区</city>

		<city>大渡口区</city>

		<city>江北区</city>

		<city>沙坪坝区</city>

		<city>九龙坡区</city>

		<city>南岸区</city>

		<city>北碚区</city>

		<city>万盛区</city>

		<city>双桥区</city>

		<city>渝北区</city>

		<city>巴南区</city>

		<city>黔江区</city>

		<city>长寿区</city>

		<city>綦江县</city>

		<city>潼南县</city>

		<city>铜梁县</city>

		<city>大足县</city>

		<city>荣昌县</city>

		<city>璧山县</city>

		<city>梁平县</city>

		<city>城口县</city>

		<city>丰都县</city>

		<city>垫江县</city>

		<city>武隆县</city>

		<city>忠县</city>

		<city>开县</city>

		<city>云阳县</city>

		<city>奉节县</city>

		<city>巫山县</city>

		<city>巫溪县</city>

		<city>石柱土家族自治县</city>

		<city>秀山土家族苗族自治县</city>

		<city>酉阳土家族苗族自治县</city>

		<city>彭水苗族土家族自治县</city>

		<city>江津</city>

		<city>合川</city>

		<city>永川</city>

		<city>南川</city>

	</province>

	<province name="四川">

		<city>成都</city>

		<city>自贡</city>

		<city>攀枝花</city>

		<city>泸州</city>

		<city>德阳</city>

		<city>绵阳</city>

		<city>广元</city>

		<city>遂宁</city>

		<city>内江</city>

		<city>乐山</city>

		<city>南充</city>

		<city>眉山</city>

		<city>宜宾</city>

		<city>广安</city>

		<city>达州</city>

		<city>雅安</city>

		<city>巴中</city>

		<city>资阳</city>

		<city>阿坝</city>

		<city>甘孜</city>

		<city>凉山</city>

	</province>

	<province name="贵州">

		<city>贵阳</city>

		<city>六盘水</city>

		<city>遵义</city>

		<city>安顺</city>

		<city>铜仁</city>

		<city>黔西南</city>

		<city>毕节</city>

		<city>黔东南</city>

		<city>黔南</city>

	</province>

	<province name="云南">

		<city>昆明</city>

		<city>曲靖</city>

		<city>玉溪</city>

		<city>保山</city>

		<city>昭通</city>

		<city>丽江</city>

		<city>思茅</city>

		<city>临沧</city>

		<city>楚雄</city>

		<city>红河</city>

		<city>文山</city>

		<city>西双版纳</city>

		<city>大理</city>

		<city>德宏</city>

		<city>怒江</city>

		<city>迪庆</city>

	</province>

	<province name="西藏">

		<city>拉萨</city>

		<city>昌都</city>

		<city>山南</city>

		<city>日喀则</city>

		<city>那曲</city>

		<city>阿里</city>

		<city>林芝</city>

	</province>

	<province name="陕西">

		<city>西安</city>

		<city>铜川</city>

		<city>宝鸡</city>

		<city>咸阳</city>

		<city>渭南</city>

		<city>延安</city>

		<city>汉中</city>

		<city>榆林</city>

		<city>安康</city>

		<city>商洛</city>

	</province>

	<province name="甘肃">

		<city>兰州</city>

		<city>嘉峪关</city>

		<city>金昌</city>

		<city>白银</city>

		<city>天水</city>

		<city>武威</city>

		<city>张掖</city>

		<city>平凉</city>

		<city>酒泉</city>

		<city>庆阳</city>

		<city>定西</city>

		<city>陇南</city>

		<city>临夏</city>

		<city>甘南</city>

	</province>

	<province name="青海">

		<city>西宁</city>

		<city>海东</city>

		<city>海北</city>

		<city>黄南</city>

		<city>海南</city>

		<city>果洛</city>

		<city>玉树</city>

		<city>海西</city>

	</province>

	<province name="宁夏">

		<city>银川</city>

		<city>石嘴山</city>

		<city>吴忠</city>

		<city>固原</city>

		<city>中卫</city>

	</province>

	<province name="新疆">

		<city>乌鲁木齐</city>

		<city>克拉玛依</city>

		<city>吐鲁番</city>

		<city>哈密</city>

		<city>昌吉</city>

		<city>博尔塔拉</city>

		<city>巴音郭楞</city>

		<city>阿克苏</city>

		<city>克孜勒苏</city>

		<city>喀什</city>

		<city>和田</city>

		<city>伊犁</city>

		<city>塔城</city>

		<city>阿勒泰</city>

		<city>石河子</city>

		<city>阿拉尔</city>

		<city>图木舒克</city>

		<city>五家渠</city>

	</province>

	<province name="香港">

		<city>香港</city>

	</province>

	<province name="澳门">

		<city>澳门</city>

	</province>

	<province name="台湾">

		<city>台湾</city>

	</province>

</china>

　　

效果：

选择一个省份，弹出市级列表

ajax做省市联动的更多相关文章

  1. AJAX部分---对比js做日期的下拉选择 和 ajax做三级联动；

    js做日期选择: 实现当前年份的前5后5年的日期选择 实现功能:年份和月份页面加载完成使用JS循环添加,天数根据月份的变化动态添加改变 扩展功能:天数可以根据闰年平年变化 <body> & ...

  2. JQuery+Ajax制作省市联动

    $(document).ready(function () { $("#Province").append("<option value=''>" ...

  3. html + ashx 实现Ajax省市联动

    基本思路:1.了解数据库中省和市的表结构及关联主键 2.创建html页面及select标签 3.通过ajax向ashx(一般处理程序)发送后台请求完成联动效果 表结构: 这里,开始创建一个命为demo ...

  4. ajax经典案例--省市联动

    ajax的省市联动案例 如果我们的代码比较复杂,可以通过file_put_contents来输出信息到某个日志. 在一个元素中添加另一个元素使用的方法是:appendChild(). 函数append ...

  5. AJAX案例四：省市联动

    <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"% ...

  6. Ajax省市联动

    以JQuery为JS,写的Ajax省市联动. 代码如下: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN&q ...

  7. AJAX应用案例之省市联动

    jsp 主要是要注意多Document的操作 <%-- Created by IntelliJ IDEA. User: YuWenHui Date: 2017/4/23 0023 Time: 1 ...

  8. 练习: 省市联动(Ajax)

    // 示例一: china.xml (位于 src 目录下) <?xml version="1.0" encoding="utf-8"?> < ...

  9. 使用jquery.ajax实现省市的二级联动(SSH架构)

    首先实现jquery ajax的二级联动 要下载个jquery.js 我在这里就不准备了 自行百度下载 背景介绍:通过部门的ID来查找部门下的所有班级 我实现二级联动的思路是:先查询所有部门 显示在页 ...

随机推荐

  1. 关于Unity中的刚体和碰撞器的相关用法(二)

    在关于Unity中的刚体和碰撞器的相关用法(一)的基础上 有一个plane平面,一个ball球体,都挂了碰撞器,ball挂了刚体Rigidbody,写了一个脚本ball挂载在球体上,球体从空中落下装机 ...

  2. python3 实现mysql数据库连接池

    首先声明一下,这篇博客进行了通过自己的代码方式,加上这篇博客,最后总结出这段代码.参考博客连接:http://blog.csdn.net/zbc1090549839/article/details/5 ...

  3. Apache Flume 学习

    Apache Flume,又称Flume NG (next generation),前身是Cloudera公司的Flume项目 -- 又称Flume OG. 这货的功能就是从源中将数据收集到指定的目的 ...

  4. Git -- 相关命令

    git init : 将当前目录变成Git可以管理的仓库 git add :告诉Git,把文件添加到仓库 git commit -m "" :把文件提交到仓库 git status ...

  5. 让不支持MVC3的服务器/空间/虚拟主机 支持MVC3 (前提是必须支持 .net 4.0才可以)

    在有的时候,你用的VPS,服务器或者是虚拟空间可能是没有安装MVC3的,下面我们就自己来手动来让虚拟空间支持(前提是空间必须是.net 4.0的,因为MVC3是在4.0下运行) 我们先在web.con ...

  6. server2008，本机可以登录ftp，其他机器登录不了解决办法。肯定是防火墙的问题

    转自http://kkworms.blog.51cto.com/540865/558477 今天在windows server 2008 R2上安装了FTP,安装过程如下,然后添加内置防火墙设置,设置 ...

  7. C# 导出资源文件到硬盘

    我把一个exe应用程序添加了资源里面, 我想,程序运行之后,点击按钮之后,就把这个资源文件导出到硬盘, 代码如下: private void button1_Click(object sender, ...

  8. ubuntu16.04卸载tensorflow0.11版本，安装tensorflow1.1.0版本

    卸载旧版本: pip uninstall tensorflow 安装新版本: sudo pip install --upgrade https://storage.googleapis.com/ten ...

  9. 【转】IOS 学习之 NSPredicate 模糊、精确、查询

    转自:http://blog.csdn.net/lianbaixue/article/details/10579117   简述:Cocoa框架中的NSPredicate用于查询,原理和用法都类似于S ...

  10. spark 源码阅读博客

    http://blog.csdn.net/oopsoom/article/details/38257749