httpClient 使用post方法提交json数据，接收返回数据实例

import java.io.IOException;import java.io.UnsupportedEncodingException;import net.sf.json.JSONObject;import org.apache.commons.lang.StringUtils;import org.apache.http.HttpResponse;import org.apache.http.client.ClientProtocolException;import org.apache.http.client.methods.HttpPost;import org.apache.http.entity.StringEntity;import org.apache.http.impl.client.DefaultHttpClient;import org.apache.http.message.BasicHeader;import org.apache.http.protocol.HTTP;import org.apache.http.util.EntityUtils;/** * 利用的邮件、短信网关发送系统提示信息，发送系统信息给用户 *  * @author zhang *  */public class SendMsgUtil {// 电子邮件发送网关接口public static final String NETGATE_EMAIL_URL = "http://xxx.xxxx.com.cn:8090/api/sendemail.php";// 短信发送网关接口public static final String NETGATE_SMS_URL = "http://xxx.xxxx.com.cn:8090/api/sendsms.php";public static final String APP_TYPE = "jssjApp";public static final String MSG_TYPE_EMAIL = "2";// 邮件public static final String MSG_TYPE_SMS = "1";// 短信public static final String SOURCE = "netgate";// 返回信息来源public static final String STATUS_SUCCESS = "1";// 返回成功标志private static final String APPLICATION_JSON = "application/json";private static final String CONTENT_TYPE_TEXT_JSON = "text/json";private static final String CHARSET_UTF_8 = "UTF-8";/** * 发送json数据到服务器网关接口 *  * @param url * @param param * @return */public static String postJson(String url, JSONObject param) {try {HttpPost httpPost = new HttpPost(url);httpPost.addHeader(HTTP.CONTENT_TYPE, APPLICATION_JSON);// 绑定到请求 EntryStringEntity se = new StringEntity(param.toString(), CHARSET_UTF_8);se.setContentType(CONTENT_TYPE_TEXT_JSON);se.setContentEncoding(new BasicHeader(HTTP.CONTENT_TYPE, APPLICATION_JSON));httpPost.setEntity(se);// 发送请求HttpResponse httpResponse = new DefaultHttpClient().execute(httpPost);// 得到应答的字符串，这也是一个 JSON 格式保存的数据String resp = EntityUtils.toString(httpResponse.getEntity(), CHARSET_UTF_8);System.out.println(resp);return resp;} catch (UnsupportedEncodingException e) {e.printStackTrace();} catch (ClientProtocolException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}return null;}/** * 组合电子邮箱发送数据 *  * @param email * @param username * @return */private static String getFormatEmail(String email, String username) {email = StringUtils.trim(email).toLowerCase();username = StringUtils.trim(username);if (StringUtils.isNotBlank(email)) {if (StringUtils.isBlank(username)) {username = "null";}return email + "/" + username;}return null;}/** * 组合手机号发送数据 *  * @param phone * @param username * @return */private static String getFormatPhone(String phone, String username) {phone = StringUtils.trim(phone).toLowerCase();username = StringUtils.trim(username);if (StringUtils.isNotBlank(phone)) {if (StringUtils.isBlank(username)) {username = "null";}return phone + "/" + username;}return null;}/** * 组合发送的json数据 *  * @param type * @param toAddress * @param username * @param title * @param content * @return */private static JSONObject getPostJson(String type, String toAddress, String username, String title, String content) {JSONObject param = new JSONObject();param.put("apptype", APP_TYPE);param.put("msgtype", type);param.put("title", title);param.put("content", content);if (type.equalsIgnoreCase(MSG_TYPE_EMAIL)) {// 邮件param.put("sendto", getFormatEmail(toAddress, username));} else if (type.equalsIgnoreCase(MSG_TYPE_SMS)) {// 短信param.put("sendto", getFormatPhone(toAddress, username));}return param;}/** * 发送单封邮件 *  * @param email * @param username * @param title * @param content * @return */public static boolean sendEmail(String email, String username, String title, String content) {// 处理参数信息，去空，邮件字母转小写title = StringUtils.trim(title);content = StringUtils.trim(content);if (StringUtils.isBlank(username)) {username = "null";}// 邮箱地址、内容均不为空时，发送邮件，否则不发送if (StringUtils.isNotBlank(email) && StringUtils.isNotBlank(content)) {// 先封装一个 JSON 对象JSONObject param = new JSONObject();param = getPostJson(MSG_TYPE_EMAIL, email, username, title, content);String resp = postJson(NETGATE_EMAIL_URL, param);// 解析返回的json数据JSONObject respJson = JSONObject.fromObject(resp);Integer status = (Integer) respJson.get("status");if (status == 1) {return true;}}return false;};/** * 发送单条短信 *  * @param phone * @param username * @param title * @param content * @return */public static boolean sendSMS(String phone, String username, String title, String content) {// 处理参数信息，去空，邮件字母转小写title = StringUtils.trim(title);content = StringUtils.trim(content);if (StringUtils.isBlank(username)) {username = "null";}// 邮箱地址、内容均不为空时，发送邮件，否则不发送if (StringUtils.isNotBlank(phone) && StringUtils.isNotBlank(content)) {// 先封装一个 JSON 对象JSONObject param = new JSONObject();param = getPostJson(MSG_TYPE_SMS, phone, username, title, content);String resp = postJson(NETGATE_SMS_URL, param);// 解析返回的json数据JSONObject respJson = JSONObject.fromObject(resp);String status = (String) respJson.get("status");if ("1".equalsIgnoreCase(status)) {return true;}}return false;};public static void main(String[] args) {// sendEmail("[e-mail]", "zhang", "邮件标题测试", "邮件内容测试<a href='http://www.xxxxx.cn/'>二维码链接</a>");sendSMS("18812345678", "张某某", "短信标题测试", "短信内容测试<a href='http://www.xxxxx.cn/'>二维码链接</a>");}}