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package cn.com.origin.autocode.jfom.util;
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.io.UnsupportedEncodingException;
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import java.util.Iterator;
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import java.util.Map;
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import java.util.Map.Entry;
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import java.util.Set;
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import org.apache.commons.httpclient.DefaultHttpMethodRetryHandler;
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import org.apache.commons.httpclient.HttpClient;
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import org.apache.commons.httpclient.HttpStatus;
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import org.apache.commons.httpclient.NameValuePair;
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import org.apache.commons.httpclient.methods.GetMethod;
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import org.apache.commons.httpclient.methods.PostMethod;
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import org.apache.commons.httpclient.params.HttpMethodParams;
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public class HttpUtil {
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public static String doGet(String url) {
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// 输入流
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InputStream is = null;
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BufferedReader br = null;
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String result = null;
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// 创建httpClient实例
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HttpClient httpClient = new HttpClient();
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// 设置http连接主机服务超时时间：15000毫秒
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// 先获取连接管理器对象，再获取参数对象,再进行参数的赋值
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httpClient.getHttpConnectionManager().getParams().setConnectionTimeout(15000);
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// 创建一个Get方法实例对象
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GetMethod getMethod = new GetMethod(url);
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// 设置get请求超时为60000毫秒
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getMethod.getParams().setParameter(HttpMethodParams.SO_TIMEOUT, 60000);
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// 设置请求重试机制，默认重试次数：3次，参数设置为true，重试机制可用，false相反
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getMethod.getParams().setParameter(HttpMethodParams.RETRY_HANDLER, new DefaultHttpMethodRetryHandler(3, true));
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try {
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// 执行Get方法
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int statusCode = httpClient.executeMethod(getMethod);
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// 判断返回码
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if (statusCode != HttpStatus.SC_OK) {
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// 如果状态码返回的不是ok,说明失败了,打印错误信息
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System.err.println("Method faild: " + getMethod.getStatusLine());
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} else {
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// 通过getMethod实例，获取远程的一个输入流
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is = getMethod.getResponseBodyAsStream();
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// 包装输入流
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br = new BufferedReader(new InputStreamReader(is, "UTF-8"));
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StringBuffer sbf = new StringBuffer();
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// 读取封装的输入流
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String temp = null;
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while ((temp = br.readLine()) != null) {
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sbf.append(temp).append("\r\n");
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}
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result = sbf.toString();
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}
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} catch (IOException e) {
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e.printStackTrace();
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} finally {
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// 关闭资源
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if (null != br) {
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try {
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br.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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if (null != is) {
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try {
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is.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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// 释放连接
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getMethod.releaseConnection();
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}
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return result;
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}
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public static String doPost(String url, Map<String, Object> paramMap) {
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// 获取输入流
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InputStream is = null;
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BufferedReader br = null;
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String result = null;
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// 创建httpClient实例对象
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HttpClient httpClient = new HttpClient();
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// 设置httpClient连接主机服务器超时时间：15000毫秒
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httpClient.getHttpConnectionManager().getParams().setConnectionTimeout(15000);
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// 创建post请求方法实例对象
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PostMethod postMethod = new PostMethod(url);
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// 设置post请求超时时间
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postMethod.getParams().setParameter(HttpMethodParams.SO_TIMEOUT, 60000);
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NameValuePair[] nvp = null;
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// 判断参数map集合paramMap是否为空
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if (null != paramMap && paramMap.size() > 0) {// 不为空
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// 创建键值参数对象数组，大小为参数的个数
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nvp = new NameValuePair[paramMap.size()];
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// 循环遍历参数集合map
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Set<Entry<String, Object>> entrySet = paramMap.entrySet();
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// 获取迭代器
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Iterator<Entry<String, Object>> iterator = entrySet.iterator();
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int index = 0;
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while (iterator.hasNext()) {
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Entry<String, Object> mapEntry = iterator.next();
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// 从mapEntry中获取key和value创建键值对象存放到数组中
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try {
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nvp[index] = new NameValuePair(mapEntry.getKey(),
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new String(mapEntry.getValue().toString().getBytes("UTF-8"), "UTF-8"));
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} catch (UnsupportedEncodingException e) {
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e.printStackTrace();
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}
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index++;
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}
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}
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// 判断nvp数组是否为空
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if (null != nvp && nvp.length > 0) {
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// 将参数存放到requestBody对象中
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postMethod.setRequestBody(nvp);
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}
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// 执行POST方法
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try {
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int statusCode = httpClient.executeMethod(postMethod);
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// 判断是否成功
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if (statusCode != HttpStatus.SC_OK) {
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System.err.println("Method faild: " + postMethod.getStatusLine());
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}
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// 获取远程返回的数据
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is = postMethod.getResponseBodyAsStream();
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// 封装输入流
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br = new BufferedReader(new InputStreamReader(is, "UTF-8"));
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StringBuffer sbf = new StringBuffer();
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String temp = null;
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while ((temp = br.readLine()) != null) {
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sbf.append(temp).append("\r\n");
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}
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result = sbf.toString();
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} catch (IOException e) {
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e.printStackTrace();
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} finally {
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// 关闭资源
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if (null != br) {
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try {
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br.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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if (null != is) {
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try {
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is.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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// 释放连接
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postMethod.releaseConnection();
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}
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return result;
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}
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}
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zouxk
6 years ago