java http token请求代码实例

本文实例为大家分享了java http token的具体代码，供大家参考，具体内容如下

package com.monitoring.common.util;

import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.MultiThreadedHttpConnectionManager;
import org.apache.commons.httpclient.NameValuePair;
import org.apache.commons.httpclient.methods.GetMethod;
import org.apache.commons.httpclient.methods.PostMethod;
import org.apache.commons.lang.StringUtils;
import org.apache.log4j.Logger;
import org.codehaus.jackson.JsonParseException;
import org.codehaus.jackson.map.JsonMappingException;

/**
* 和HTTP相关的操作
*
* @author
*
*/
public class HttpUtils {

private static final Logger logger = Logger.getLogger(HttpUtils.class);
private final static MultiThreadedHttpConnectionManager manager = new MultiThreadedHttpConnectionManager();
// 支持重复连接
private static HttpClient client = new HttpClient(manager);

/**
*
* @Title: doPost
* @Description: post请求
* @param reqUrl
* @param parameters
* @return String
*/
public static String doPost(String reqUrl, Map<String, String> parameters, String token) {
HttpURLConnection urlConn = null;
try {
urlConn = _sendPost(reqUrl, parameters, token);
String responseContent = _getContent(urlConn);
return responseContent.trim();
} finally {
if (urlConn != null) {
urlConn.disconnect();
}
}
}

/**
*
* @Title: doUploadFile
* @Description: 从网络上下载文件
* @param reqUrl
* @param parameters
* @param fileParamName
* @param filename
* @param contentType
* @param data
* @return String
*/
public static String doUploadFile(String reqUrl, Map<String, String> parameters, String fileParamName,
String filename, String contentType, byte[] data) {
HttpURLConnection urlConn = null;
try {
urlConn = _sendFormdata(reqUrl, parameters, fileParamName, filename, contentType, data);
String responseContent = new String(_getBytes(urlConn));
return responseContent.trim();
} catch (Exception e) {
throw new RuntimeException(e.getMessage(), e);
} finally {
if (urlConn != null) {
urlConn.disconnect();
}
}
}

private static HttpURLConnection _sendFormdata(String reqUrl, Map<String, String> parameters, String fileParamName,
String filename, String contentType, byte[] data) {
HttpURLConnection urlConn = null;
try {
URL url = new URL(reqUrl);
urlConn = (HttpURLConnection) url.openConnection();
urlConn.setRequestMethod("POST");
urlConn.setConnectTimeout(5000);// （单位：毫秒）jdk
urlConn.setReadTimeout(5000);// （单位：毫秒）jdk 1.5换成这个,读操作超时
urlConn.setDoOutput(true);

urlConn.setRequestProperty("Connection", "keep-alive");

String boundary = "-----------------------------114975832116442893661388290519"; // 分隔符
urlConn.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + boundary);

boundary = "--" + boundary;
StringBuffer params = new StringBuffer();
if (parameters != null) {
for (Iterator<String> iter = parameters.keySet().iterator(); iter.hasNext();) {
String name = iter.next();
String value = parameters.get(name);
params.append(boundary + "\r\n");
params.append("Content-Disposition: form-data; name=\"" + name + "\"\r\n\r\n");
// params.append(URLEncoder.encode(value, "UTF-8"));
params.append(value);
params.append("\r\n");
}
}

StringBuilder sb = new StringBuilder();
// sb.append("\r\n");
sb.append(boundary);
sb.append("\r\n");
sb.append("Content-Disposition: form-data; name=\"" + fileParamName + "\"; filename=\"" + filename
+ "\"\r\n");
sb.append("Content-Type: " + contentType + "\r\n\r\n");
byte[] fileDiv = sb.toString().getBytes();
byte[] endData = ("\r\n" + boundary + "--\r\n").getBytes();
byte[] ps = params.toString().getBytes();

OutputStream os = urlConn.getOutputStream();
os.write(ps);
os.write(fileDiv);
os.write(data);
os.write(endData);

os.flush();
os.close();
} catch (Exception e) {
throw new RuntimeException(e.getMessage(), e);
}
return urlConn;
}

private static String _getContent(HttpURLConnection urlConn) {
try {
String responseContent = null;
InputStream in = urlConn.getInputStream();
BufferedReader rd = new BufferedReader(new InputStreamReader(in, "UTF-8"));
String tempLine = rd.readLine();
StringBuffer tempStr = new StringBuffer();
String crlf = System.getProperty("line.separator");
while (tempLine != null) {
tempStr.append(tempLine);
tempStr.append(crlf);
tempLine = rd.readLine();
}
responseContent = tempStr.toString();
rd.close();
in.close();
return responseContent;
} catch (Exception e) {
throw new RuntimeException(e.getMessage(), e);
}
}

private static byte[] _getBytes(HttpURLConnection urlConn) {
try {
InputStream in = urlConn.getInputStream();
ByteArrayOutputStream os = new ByteArrayOutputStream();
byte[] buf = new byte[1024];
for (int i = 0; (i = in.read(buf)) > 0;)
os.write(buf, 0, i);
in.close();
return os.toByteArray();
} catch (Exception e) {
throw new RuntimeException(e.getMessage(), e);
}
}

private static HttpURLConnection _sendPost(String reqUrl, Map<String, String> parameters, String token) {
HttpURLConnection urlConn = null;
try {
StringBuffer params = new StringBuffer();
if (parameters != null) {
for (Iterator<String> iter = parameters.keySet().iterator(); iter.hasNext();) {
String name = iter.next();
String value = parameters.get(name);
params.append(name + "=");
params.append(URLEncoder.encode(value, "UTF-8"));
if (iter.hasNext())
params.append("&");
}
}

URL url = new URL(reqUrl);
urlConn = (HttpURLConnection) url.openConnection();

if(StringUtils.isNotBlank(token)) {
urlConn.addRequestProperty("token", token);
}

urlConn.setRequestMethod("POST");
urlConn.setConnectTimeout(5000);// （单位：毫秒）jdk
urlConn.setReadTimeout(5000);// （单位：毫秒）jdk 1.5换成这个,读操作超时
urlConn.setDoOutput(true);
byte[] b = params.toString().getBytes();
urlConn.getOutputStream().write(b, 0, b.length);
urlConn.getOutputStream().flush();
urlConn.getOutputStream().close();
} catch (Exception e) {
throw new RuntimeException(e.getMessage(), e);
}
return urlConn;
}

/**
* 发送GET请求
*
* @param link
* @param charset
* @return
*/
public static String doGet(String link, String charset, String token) {
HttpURLConnection conn = null;
try {
URL url = new URL(link);
conn = (HttpURLConnection) url.openConnection();

conn.setRequestMethod("GET");

conn.setRequestProperty("User-Agent", "Mozilla/5.0");

if(StringUtils.isNotEmpty(token)) {
conn.addRequestProperty("token", token);
}

BufferedInputStream in = new BufferedInputStream(conn.getInputStream());
ByteArrayOutputStream out = new ByteArrayOutputStream();
byte[] buf = new byte[1024];
for (int i = 0; (i = in.read(buf)) > 0;) {
out.write(buf, 0, i);
}
out.flush();
out.close();
String s = new String(out.toByteArray(), charset);
return s;
} catch (Exception e) {
throw new RuntimeException(e.getMessage(), e);
} finally {
if (conn != null) {
conn.disconnect();
}
}
}

/**
* UTF-8编码
*
* @param link
* @return
*/
public static String doGet(String link, String token) {
return doGet(link, "UTF-8", token);
}

/**
*
* @Title: getIntResponse
* @Description: 发送GET请求
* @param link
* @return int
*/
public static int getIntResponse(String link, String token) {
String str = doGet(link, token);
return Integer.parseInt(str.trim());
}

public static long ip2Long(String strIP) {
long[] ip = new long[4];
// 先找到IP地址字符串中.的位置
int position1 = strIP.indexOf(".");
int position2 = strIP.indexOf(".", position1 + 1);
int position3 = strIP.indexOf(".", position2 + 1);
// 将每个.之间的字符串转换成整型
ip[0] = Long.parseLong(strIP.substring(0, position1));
ip[1] = Long.parseLong(strIP.substring(position1 + 1, position2));
ip[2] = Long.parseLong(strIP.substring(position2 + 1, position3));
ip[3] = Long.parseLong(strIP.substring(position3 + 1));
return (ip[0] << 24) + (ip[1] << 16) + (ip[2] << 8) + ip[3];
}

// 将10进制整数形式转换成127.0.0.1形式的IP地址
public static String long2IP(long longIP) {
StringBuffer sb = new StringBuffer("");
// 直接右移24位
sb.append(String.valueOf(longIP >>> 24));
sb.append(".");
// 将高8位置0，然后右移16位
sb.append(String.valueOf((longIP & 0x00FFFFFF) >>> 16));
sb.append(".");
sb.append(String.valueOf((longIP & 0x0000FFFF) >>> 8));
sb.append(".");
sb.append(String.valueOf(longIP & 0x000000FF));
return sb.toString();
}

/**
*
* urlParse:url解析. <br/>
*
* @author majun
* @param arrList
* @param url
* @return
* @since JDK 1.6
*/
public static Map<String, String> urlParse(List<String> arrList, String url) {

Map<String, String> vaulesMap = new HashMap<String, String>();
for (String s : arrList) {
Pattern pattern = Pattern.compile(s + "=([^&]*)(&|$)");
Matcher matcher = pattern.matcher(url);
if (matcher.find()) {
String[] arr = matcher.group(1).split("'");
vaulesMap.put(s, arr[1]);
}
}
return vaulesMap;

}

/***
*
* http_doPost: httpClient发送post 请求. <br/>
*
* @author majun
* @version 创建时间：2016年6月22日 下午6:15:59
* @since JDK 1.6
*/
public static String http_doPost(String reqUrl, Map<String, String> parameters, String userToken) {

try {

// MultiThreadedHttpConnectionManager manager = new MultiThreadedHttpConnectionManager();
// 支持重复连接
// HttpClient client = new HttpClient(manager);

PostMethod post = new PostMethod(reqUrl);
post.setRequestHeader("Connection", "keep-alive");
post.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");

NameValuePair[] params = new NameValuePair[parameters.size()];
Set<String> keys = parameters.keySet();
int index = 0;
for (String key : keys) {

params[index] = new NameValuePair(key, parameters.get(key));
index++;
}

post.setQueryString(params);

if (StringUtils.isNotBlank(userToken)) {
post.setRequestHeader("userToken", userToken);
}

Integer status = client.executeMethod(post);
logger.info("loginStatus:" + status);

String body = post.getResponseBodyAsString();

return body;

} catch (JsonParseException e) {
e.printStackTrace();
} catch (JsonMappingException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}

/***
*
* http_doGet: httpClient发送get请求. <br/>
*
* @author majun
* @version 创建时间：2016年6月22日 下午6:25:10
* @since JDK 1.6
*/
public static String http_doGet(String reqUrl, Map<String, String> parameters, String userToken) {

try {

// MultiThreadedHttpConnectionManager manager = new MultiThreadedHttpConnectionManager();
// 支持重复连接
// HttpClient client = new HttpClient(manager);
GetMethod get = new GetMethod(reqUrl);

NameValuePair[] params = new NameValuePair[parameters.size()];
Set<String> keys = parameters.keySet();
int index = 0;
for (String key : keys) {

params[index] = new NameValuePair(key, parameters.get(key));
index++;
}

get.setQueryString(params);

if (StringUtils.isNotBlank(userToken)) {
get.setRequestHeader("userToken", userToken);
}

Integer status = client.executeMethod(get);
logger.info("http_doGet==>Status:" + status);
String body = get.getResponseBodyAsString();
return body;

} catch (Exception e) {
e.printStackTrace();
}

return null;
}
}

以上所述是小编给大家介绍的java http token请求详解整合网站的支持！

来源：https://blog.csdn.net/qq_33212500/article/details/79229897