package test;import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;import org.json.simple.JSONObject;import cn.com.wooboo.utils.HttpUtils;import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.TypeReference;
import com.analysis.bean.Ip;
import com.analysis.bean.Visitlog;public class TestJson {public static void main(String[] args) throws IOException {Ip ip = new Ip();String ipString = HttpUtils.sendGet("220.168.0.80");System.err.println(ipString);Ip ip2 = JSON.parseObject(ipString, Ip.class);System.out.println(ip2.getData().get("region"));System.out.println(ip2.getData().get("city"));System.out.println(ip2.getData().get("area"));String ipString2 = JSON.toJSONString(ip2);System.out.println(ipString2);}}

在我们的这一个JSON 小程序之中我们依据具体的ip “192.168.0.80” 在HttpUtils之中

依赖的是淘宝的一个ip地址库

import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLConnection;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;import javax.servlet.http.HttpServletRequest;public class HttpUtils {public static String getRemoteHost(HttpServletRequest request) {String ip = request.getHeader("x-forwarded-for");if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {ip = request.getHeader("Proxy-Client-IP");}if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {ip = request.getHeader("WL-Proxy-Client-IP");}if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {ip = request.getRemoteAddr();}return ip.equals("0:0:0:0:0:0:0:1") ? "127.0.0.1" : ip;}/*** 向指定URL发送GET方法的请求* * @param url*            发送请求的URL* @param param*            请求参数，请求参数应该是 name1=value1&name2=value2 的形式。* @return URL 所代表远程资源的响应结果*/public static String sendGet(String url, String param) {String result = "";BufferedReader in = null;try {String urlNameString = url + "?" + param;URL realUrl = new URL(urlNameString);// 打开和URL之间的连接URLConnection connection = realUrl.openConnection();// 设置通用的请求属性connection.setRequestProperty("accept", "*/*");connection.setRequestProperty("connection", "Keep-Alive");connection.setRequestProperty("user-agent","Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");// 建立实际的连接connection.connect();// 获取所有响应头字段Map<String, List<String>> map = connection.getHeaderFields();// 遍历所有的响应头字段for (String key : map.keySet()) {System.out.println(key + "--->" + map.get(key));}// 定义 BufferedReader输入流来读取URL的响应in = new BufferedReader(new InputStreamReader(connection.getInputStream()));String line;while ((line = in.readLine()) != null) {result += line;}} catch (Exception e) {System.out.println("发送GET请求出现异常！" + e);e.printStackTrace();}// 使用finally块来关闭输入流finally {try {if (in != null) {in.close();}} catch (Exception e2) {e2.printStackTrace();}}return result;}/*** 向指定 URL 发送POST方法的请求* * @param url*            发送请求的 URL* @return 所代表远程资源的响应结果*/public static String sendGet(String ip) {String baseUrl = "http://ip.taobao.com/service/getIpInfo.php?ip=";String url = baseUrl + ip;String result = "";BufferedReader in = null;try {URL realUrl = new URL(url);// 打开和URL之间的连接URLConnection connection = realUrl.openConnection();// 设置通用的请求属性connection.setRequestProperty("accept", "*/*");connection.setRequestProperty("connection", "Keep-Alive");connection.setRequestProperty("user-agent","Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");// 建立实际的连接connection.connect();// 定义 BufferedReader输入流来读取URL的响应in = new BufferedReader(new InputStreamReader(connection.getInputStream()));String line;while ((line = in.readLine()) != null) {result += line;}} catch (Exception e) {System.out.println("发送GET请求出现异常！" + e);e.printStackTrace();}// 使用finally块来关闭输入流finally {try {if (in != null) {in.close();}} catch (Exception e2) {e2.printStackTrace();}}return result;}/*** 向指定 URL 发送POST方法的请求* * @param url*            发送请求的 URL* @param param*            请求参数，请求参数应该是 name1=value1&name2=value2 的形式。* @return 所代表远程资源的响应结果*/public static String sendPost(String url, String param) {PrintWriter out = null;BufferedReader in = null;String result = "";try {URL realUrl = new URL(url);// 打开和URL之间的连接URLConnection conn = realUrl.openConnection();// 设置通用的请求属性conn.setRequestProperty("accept", "*/*");conn.setRequestProperty("connection", "Keep-Alive");conn.setRequestProperty("user-agent","Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");// 发送POST请求必须设置如下两行conn.setDoOutput(true);conn.setDoInput(true);// 获取URLConnection对象对应的输出流out = new PrintWriter(conn.getOutputStream());// 发送请求参数out.print(param);// flush输出流的缓冲out.flush();// 定义BufferedReader输入流来读取URL的响应in = new BufferedReader(new InputStreamReader(conn.getInputStream()));String line;while ((line = in.readLine()) != null) {result += line;}} catch (Exception e) {System.out.println("发送 POST 请求出现异常！" + e);e.printStackTrace();}// 使用finally块来关闭输出流、输入流finally {try {if (out != null) {out.close();}if (in != null) {in.close();}} catch (IOException ex) {ex.printStackTrace();}}return result;}/*** 向指定 URL 发送POST方法的请求* * @param url*            发送请求的 URL* @return 所代表远程资源的响应结果*/public static List<String> sendGetList(String url) {List<String> list = new ArrayList<String>();BufferedReader in = null;try {URL realUrl = new URL(url);// 打开和URL之间的连接URLConnection connection = realUrl.openConnection();// 设置通用的请求属性connection.setRequestProperty("accept", "*/*");connection.setRequestProperty("connection", "Keep-Alive");connection.setRequestProperty("user-agent","Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");// 建立实际的连接connection.connect();// 获取所有响应头字段// Map<String, List<String>> map = connection.getHeaderFields();// 遍历所有的响应头字段// for (String key : map.keySet()) {// System.out.println(key + "--->" + map.get(key));// }// 定义 BufferedReader输入流来读取URL的响应in = new BufferedReader(new InputStreamReader(connection.getInputStream()));String line;while ((line = in.readLine()) != null) {System.out.println(line);list.add(line);}} catch (Exception e) {System.out.println("发送GET请求出现异常！" + e);e.printStackTrace();}// 使用finally块来关闭输入流finally {try {if (in != null) {in.close();}} catch (Exception e2) {e2.printStackTrace();}}return list;}public static void main(String[] args) {// //发送 GET 请求// String// s=HttpUtils.sendGet("http://localhost:6144/Home/RequestString",// "key=123&v=456");// System.out.println(s);//// //发送 GET 请求// String// sg=HttpUtils.sendGet("http://localhost:6144/Home/RequestString?key=123&v=456");// System.out.println(sg);// 发送 POST 请求String sr = HttpUtils.sendPost("http://127.0.0.1/WBCps/a/service/adList", "en=123212312");System.out.println(sr);}public static String readContentFromGet(String url) {try {// 拼凑get请求的URL字串，使用URLEncoder.encode对特殊和不可见字符进行编码URL getUrl = new URL(url);// 根据拼凑的URL，打开连接，URL.openConnection()函数会根据// URL的类型，返回不同的URLConnection子类的对象，在这里我们的URL是一个http，因此它实际上返回的是HttpURLConnectionHttpURLConnection connection = (HttpURLConnection) getUrl.openConnection();// 建立与服务器的连接，并未发送数据connection.connect();// 发送数据到服务器并使用Reader读取返回的数据BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));String lines;String result = "";while ((lines = reader.readLine()) != null) {result += lines;}reader.close();// 断开连接connection.disconnect();return result;} catch (IOException e) {e.printStackTrace();return "";}}public static String readContentFromPost(String url, String content) {try {// Post请求的url，与get不同的是不需要带参数URL postUrl = new URL(url);// 打开连接HttpURLConnection connection = (HttpURLConnection) postUrl.openConnection();// 打开读写属性，默认均为falseconnection.setDoOutput(true);connection.setDoInput(true);// 设置请求方式，默认为GETconnection.setRequestMethod(" POST ");// Post 请求不能使用缓存connection.setUseCaches(false);// URLConnection.setFollowRedirects是static 函数，作用于所有的URLConnection对象。// connection.setFollowRedirects(true);// URLConnection.setInstanceFollowRedirects 是成员函数，仅作用于当前函数connection.setInstanceFollowRedirects(true);// 配置连接的Content-type，配置为application/x-// www-form-urlencoded的意思是正文是urlencoded编码过的form参数，下面我们可以看到我们对正文内容使用URLEncoder.encode进行编码connection.setRequestProperty(" Content-Type "," application/x-www-form-urlencoded ");// 连接，从postUrl.openConnection()至此的配置必须要在 connect之前完成，// 要注意的是connection.getOutputStream()会隐含的进行调用 connect()，所以这里可以省略// connection.connect();DataOutputStream out = new DataOutputStream(connection.getOutputStream());// 正文内容其实跟get的URL中'?'后的参数字符串一致// DataOutputStream.writeBytes将字符串中的16位的 unicode字符以8位的字符形式写道流里面if (content != null)out.writeBytes(content);out.flush();out.close(); // flush and closeBufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));String line;String result = "";while ((line = reader.readLine()) != null) {result += line;}reader.close();return result;} catch (IOException e) {e.printStackTrace();return "";}}
}