com.lazydsr.util.net.UtilHttpRequestHelper Maven / Gradle / Ivy
package com.lazydsr.util.net;
import java.io.*;
import java.net.HttpURLConnection;
import java.net.Socket;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
/**
* UtilHttpRequestHelper
* PROJECT_NAME: lazy-utils
* PACKAGE_NAME: com.lazy.com.lazydsr.util.net
* Created by Lazy on 2017/7/11 10:28
* Version: 1.0
* Info:发起http和https请求工具类
*/
public class UtilHttpRequestHelper {
private static int READ_TIMEOUT = 30000;
private static int CONNECT_TIMEOUT = 30000;
private static String CHARSET_UTF_8 = "UTF-8";
/**
* 使用HttpURLConnection发送get请求
*
* @param requestUrl 请求地址
* @return 返回结果
*/
public static String sendHttpGet(String requestUrl) {
return sendHttpGet(requestUrl, null);
}
/**
* 使用HttpURLConnection发送get请求
*
* @param requestUrl 请求地址
* @param requestParams 参数 String:参数名，Object:参数值
* @return 返回结果
*/
public static String sendHttpGet(String requestUrl, Map requestParams) {
return sendHttpGet(requestUrl, requestParams, CHARSET_UTF_8);
}
/**
* 使用HttpURLConnection发送get请求
*
* @param requestUrl 请求地址
* @param requestParams 参数 String:参数名，Object:参数值
* @param charset 字符集
* @return 返回结果
*/
public static String sendHttpGet(String requestUrl, Map requestParams, String charset) {
StringBuffer resultBuffer = null;
// 构建请求参数
HttpURLConnection conn = null;
BufferedReader br = null;
try {
URL url = new URL(requestUrl + "?" + getRequestString(requestParams));
conn = (HttpURLConnection) url.openConnection();
conn.setDoOutput(false);
conn.setDoInput(true);
conn.setUseCaches(false);
conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
conn.setConnectTimeout(CONNECT_TIMEOUT);
conn.connect();
resultBuffer = new StringBuffer();
br = new BufferedReader(new InputStreamReader(conn.getInputStream(), charset));
String temp;
while ((temp = br.readLine()) != null) {
resultBuffer.append(temp);
}
} catch (Exception e) {
e.printStackTrace();
} finally {
if (br != null) {
try {
br.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (conn != null) {
conn.disconnect();
}
}
return resultBuffer.toString();
}
/**
* 使用HttpURLConnection发送post请求
* 默认使用UTF-8进行编码
*
* @param requestUrl 请求地址
* @return 返回结果
*/
public static String sendHttpPost(String requestUrl) {
return sendHttpPost(requestUrl, null);
}
/**
* 使用HttpURLConnection发送post请求
* 默认使用UTF-8进行编码
*
* @param requestUrl 请求地址
* @param requestParams 参数 String:参数名，Object:参数值
* @return 返回结果
*/
public static String sendHttpPost(String requestUrl, Map requestParams) {
return sendHttpPost(requestUrl, requestParams, CHARSET_UTF_8);
}
/**
* 使用HttpURLConnection发送post请求
*
* @param requestUrl 请求地址
* @param requestParams 参数 String:参数名，Object:参数值
* @param charset 字符集
* @return 返回结果
*/
public static String sendHttpPost(String requestUrl, Map requestParams, String charset) {
StringBuffer resultBuffer = null;
OutputStream outputStream = null;
BufferedReader responseReader = null;
HttpURLConnection conn = null;
try {
resultBuffer = new StringBuffer();
// 建立连接
URL url = new URL(requestUrl);
conn = (HttpURLConnection) url.openConnection();
// //设置连接属性
conn.setDoOutput(true);// 使用 URL 连接进行输出
conn.setDoInput(true);// 使用 URL 连接进行输入
conn.setUseCaches(false);// 忽略缓存
conn.setRequestMethod("POST");// 设置URL请求方法
// 设置请求属性
// 获得数据字节数据，请求数据流的编码，必须和下面服务器端处理请求流的编码一致
byte[] requestParamsBytes = getRequestString(requestParams).getBytes(charset);
conn.setRequestProperty("Content-length", "" + requestParamsBytes.length);
//httpConn.setRequestProperty("Content-Type", "application/octet-stream");
conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
conn.setRequestProperty("Connection", "Keep-Alive");// 维持长连接
conn.setRequestProperty("Charset", charset);
conn.setConnectTimeout(CONNECT_TIMEOUT);
conn.setReadTimeout(READ_TIMEOUT);
// 建立输出流，并写入数据
outputStream = conn.getOutputStream();
outputStream.write(requestParamsBytes);
outputStream.close();
// 获得响应状态
int responseCode = conn.getResponseCode();
if (HttpURLConnection.HTTP_OK == responseCode) {// 连接成功
String readLine;
// 处理响应流，必须与服务器响应流输出的编码一致
responseReader = new BufferedReader(new InputStreamReader(conn.getInputStream(), charset));
while ((readLine = responseReader.readLine()) != null) {
resultBuffer.append(readLine);
}
responseReader.close();
} else {
resultBuffer.append("请求错误：" + responseCode);
}
} catch (Exception ex) {
ex.printStackTrace();
} finally {
if (responseReader != null) {
try {
responseReader.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (outputStream != null) {
try {
outputStream.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (conn != null) {
conn.disconnect();
}
}
return resultBuffer.toString();
}
public static String sendHttpPostUploadFile(String requestUrl, String[] uploadFilePaths, String charset) {
String end = "\r\n";
String twoHyphens = "--";
String boundary = "*****";
DataOutputStream ds = null;
InputStream inputStream = null;
InputStreamReader inputStreamReader = null;
BufferedReader reader = null;
StringBuffer resultBuffer = new StringBuffer();
String tempLine = null;
try {
// 统一资源
URL url = new URL(requestUrl);
// 连接类的父类，抽象类
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
// 设置是否从httpUrlConnection读入，默认情况下是true;
conn.setDoInput(true);
// 设置是否向httpUrlConnection输出
conn.setDoOutput(true);
// Post 请求不能使用缓存
conn.setUseCaches(false);
// 设定请求的方法，默认是GET
conn.setRequestMethod("POST");
// 设置字符编码连接参数
conn.setRequestProperty("Connection", "Keep-Alive");
// 设置字符编码
conn.setRequestProperty("Charset", charset);
// 设置请求内容类型
conn.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + boundary);
// 设置DataOutputStream
ds = new DataOutputStream(conn.getOutputStream());
for (int i = 0; i < uploadFilePaths.length; i++) {
String uploadFile = uploadFilePaths[i];
String filename = uploadFile.substring(uploadFile.lastIndexOf("//") + 1);
ds.writeBytes(twoHyphens + boundary + end);
ds.writeBytes("Content-Disposition: form-data; " + "name=\"file" + i + "\";filename=\"" + filename
+ "\"" + end);
ds.writeBytes(end);
FileInputStream fStream = new FileInputStream(uploadFile);
int bufferSize = 1024;
byte[] buffer = new byte[bufferSize];
int length = -1;
while ((length = fStream.read(buffer)) != -1) {
ds.write(buffer, 0, length);
}
ds.writeBytes(end);
/* close streams */
fStream.close();
}
ds.writeBytes(twoHyphens + boundary + twoHyphens + end);
/* close streams */
ds.flush();
if (conn.getResponseCode() >= 300) {
throw new Exception(
"HTTP Request is not success, Response code is " + conn.getResponseCode());
}
if (conn.getResponseCode() == HttpURLConnection.HTTP_OK) {
inputStream = conn.getInputStream();
inputStreamReader = new InputStreamReader(inputStream);
reader = new BufferedReader(inputStreamReader);
tempLine = null;
resultBuffer = new StringBuffer();
while ((tempLine = reader.readLine()) != null) {
resultBuffer.append(tempLine);
resultBuffer.append("\n");
}
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
if (ds != null) {
try {
ds.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (reader != null) {
try {
reader.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (inputStreamReader != null) {
try {
inputStreamReader.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (inputStream != null) {
try {
inputStream.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
return resultBuffer.toString();
}
}
/**
* 发送get请求保存下载文件
*
* @param requestUrl 请求地址
* @param requestParams 参数 String:参数名，Object:参数值
* @param fileSavePathAndName 文件保存地址+文件名 因为无法确定url或者是header中是否包含文件名，所以此处默认输入路径加文件名+文件后缀
*/
public static void sendHttpGetAndSaveFile(String requestUrl, Map requestParams, String fileSavePathAndName) {
HttpURLConnection conn = null;
BufferedReader br = null;
FileOutputStream os = null;
try {
URL url = new URL(requestUrl + "?" + getRequestString(requestParams));
conn = (HttpURLConnection) url.openConnection();
conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
conn.connect();
InputStream is = conn.getInputStream();
String fileName = conn.getHeaderField("Content-Disposition");
System.out.println(fileName);
os = new FileOutputStream(fileSavePathAndName);
byte buf[] = new byte[1024];
int count = 0;
while ((count = is.read(buf)) != -1) {
os.write(buf, 0, count);
}
os.flush();
} catch (Exception e) {
throw new RuntimeException(e);
} finally {
if (os != null) {
try {
os.close();
} catch (IOException e) {
os = null;
throw new RuntimeException(e);
} finally {
if (conn != null) {
conn.disconnect();
conn = null;
}
}
}
if (br != null) {
try {
br.close();
} catch (IOException e) {
br = null;
throw new RuntimeException(e);
} finally {
if (conn != null) {
conn.disconnect();
conn = null;
}
}
}
}
}
/**
* @Description:使用HttpClient发送post请求
* @author:liuyc
* @time:2016年5月17日 下午3:28:23
*/
// public static String httpClientPost(String urlParam, Map params, String charset) {
// StringBuffer resultBuffer = null;
// HttpClient client = new DefaultHttpClient();
// HttpPost httpPost = new HttpPost(urlParam);
// // 构建请求参数
// List list = new ArrayList();
// Iterator> iterator = params.entrySet().iterator();
// while (iterator.hasNext()) {
// Entry elem = iterator.next();
// list.add(new BasicNameValuePair(elem.getKey(), String.valueOf(elem.getValue())));
// }
// BufferedReader br = null;
// try {
// if (list.size() > 0) {
// UrlEncodedFormEntity entity = new UrlEncodedFormEntity(list, charset);
// httpPost.setEntity(entity);
// }
// HttpResponse response = client.execute(httpPost);
// // 读取服务器响应数据
// resultBuffer = new StringBuffer();
// br = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
// String temp;
// while ((temp = br.readLine()) != null) {
// resultBuffer.append(temp);
// }
// } catch (Exception e) {
// throw new RuntimeException(e);
// } finally {
// if (br != null) {
// try {
// br.close();
// } catch (IOException e) {
// br = null;
// throw new RuntimeException(e);
// }
// }
// }
// return resultBuffer.toString();
// }
//
/**
* @Description:使用HttpClient发送get请求
* @author:liuyc
* @time:2016年5月17日 下午3:28:56
*/
// public static String httpClientGet(String urlParam, Map params, String charset) {
// StringBuffer resultBuffer = null;
// HttpClient client = new DefaultHttpClient();
// BufferedReader br = null;
// // 构建请求参数
// StringBuffer sbParams = new StringBuffer();
// if (params != null && params.size() > 0) {
// for (Entry entry : params.entrySet()) {
// sbParams.append(entry.getKey());
// sbParams.append("=");
// try {
// sbParams.append(URLEncoder.encode(String.valueOf(entry.getValue()), charset));
// } catch (UnsupportedEncodingException e) {
// throw new RuntimeException(e);
// }
// sbParams.append("&");
// }
// }
// if (sbParams != null && sbParams.length() > 0) {
// urlParam = urlParam + "?" + sbParams.substring(0, sbParams.length() - 1);
// }
// HttpGet httpGet = new HttpGet(urlParam);
// try {
// HttpResponse response = client.execute(httpGet);
// // 读取服务器响应数据
// br = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
// String temp;
// resultBuffer = new StringBuffer();
// while ((temp = br.readLine()) != null) {
// resultBuffer.append(temp);
// }
// } catch (Exception e) {
// throw new RuntimeException(e);
// } finally {
// if (br != null) {
// try {
// br.close();
// } catch (IOException e) {
// br = null;
// throw new RuntimeException(e);
// }
// }
// }
// return resultBuffer.toString();
// }
//
/**
* 使用socket发送post请求
* @param urlParam
* @param params
* @param charset
* @return
*/
public static String sendSocketPost(String urlParam, Map params, String charset) {
String result = "";
// 构建请求参数
StringBuffer sbParams = new StringBuffer();
if (params != null && params.size() > 0) {
for (Entry entry : params.entrySet()) {
sbParams.append(entry.getKey());
sbParams.append("=");
sbParams.append(entry.getValue());
sbParams.append("&");
}
}
Socket socket = null;
OutputStreamWriter osw = null;
InputStream is = null;
try {
URL url = new URL(urlParam);
String host = url.getHost();
int port = url.getPort();
if (-1 == port) {
port = 80;
}
String path = url.getPath();
socket = new Socket(host, port);
StringBuffer sb = new StringBuffer();
sb.append("POST " + path + " HTTP/1.1\r\n");
sb.append("Host: " + host + "\r\n");
sb.append("Connection: Keep-Alive\r\n");
sb.append("Content-Type: application/x-www-form-urlencoded; charset=utf-8 \r\n");
sb.append("Content-Length: ").append(sb.toString().getBytes().length).append("\r\n");
// 这里一个回车换行，表示消息头写完，不然服务器会继续等待
sb.append("\r\n");
if (sbParams != null && sbParams.length() > 0) {
sb.append(sbParams.substring(0, sbParams.length() - 1));
}
osw = new OutputStreamWriter(socket.getOutputStream());
osw.write(sb.toString());
osw.flush();
is = socket.getInputStream();
String line = null;
// 服务器响应体数据长度
int contentLength = 0;
// 读取http响应头部信息
do {
line = readLine(is, 0, charset);
if (line.startsWith("Content-Length")) {
// 拿到响应体内容长度
contentLength = Integer.parseInt(line.split(":")[1].trim());
}
// 如果遇到了一个单独的回车换行，则表示请求头结束
} while (!line.equals("\r\n"));
// 读取出响应体数据（就是你要的数据）
result = readLine(is, contentLength, charset);
} catch (Exception e) {
throw new RuntimeException(e);
} finally {
if (osw != null) {
try {
osw.close();
} catch (IOException e) {
osw = null;
throw new RuntimeException(e);
} finally {
if (socket != null) {
try {
socket.close();
} catch (IOException e) {
socket = null;
throw new RuntimeException(e);
}
}
}
}
if (is != null) {
try {
is.close();
} catch (IOException e) {
is = null;
throw new RuntimeException(e);
} finally {
if (socket != null) {
try {
socket.close();
} catch (IOException e) {
socket = null;
throw new RuntimeException(e);
}
}
}
}
}
return result;
}
/**
* 使用socket发送get请求
* @param urlParam
* @param params
* @param charset
* @return
*/
public static String sendSocketGet(String urlParam, Map params, String charset) {
String result = "";
// 构建请求参数
StringBuffer sbParams = new StringBuffer();
if (params != null && params.size() > 0) {
for (Entry entry : params.entrySet()) {
sbParams.append(entry.getKey());
sbParams.append("=");
sbParams.append(entry.getValue());
sbParams.append("&");
}
}
Socket socket = null;
OutputStreamWriter osw = null;
InputStream is = null;
try {
URL url = new URL(urlParam);
String host = url.getHost();
int port = url.getPort();
if (-1 == port) {
port = 80;
}
String path = url.getPath();
socket = new Socket(host, port);
StringBuffer sb = new StringBuffer();
sb.append("GET " + path + " HTTP/1.1\r\n");
sb.append("Host: " + host + "\r\n");
sb.append("Connection: Keep-Alive\r\n");
sb.append("Content-Type: application/x-www-form-urlencoded; charset=utf-8 \r\n");
sb.append("Content-Length: ").append(sb.toString().getBytes().length).append("\r\n");
// 这里一个回车换行，表示消息头写完，不然服务器会继续等待
sb.append("\r\n");
if (sbParams != null && sbParams.length() > 0) {
sb.append(sbParams.substring(0, sbParams.length() - 1));
}
osw = new OutputStreamWriter(socket.getOutputStream());
osw.write(sb.toString());
osw.flush();
is = socket.getInputStream();
String line = null;
// 服务器响应体数据长度
int contentLength = 0;
// 读取http响应头部信息
do {
line = readLine(is, 0, charset);
if (line.startsWith("Content-Length")) {
// 拿到响应体内容长度
contentLength = Integer.parseInt(line.split(":")[1].trim());
}
// 如果遇到了一个单独的回车换行，则表示请求头结束
} while (!line.equals("\r\n"));
// 读取出响应体数据（就是你要的数据）
result = readLine(is, contentLength, charset);
} catch (Exception e) {
throw new RuntimeException(e);
} finally {
if (osw != null) {
try {
osw.close();
} catch (IOException e) {
osw = null;
throw new RuntimeException(e);
} finally {
if (socket != null) {
try {
socket.close();
} catch (IOException e) {
socket = null;
throw new RuntimeException(e);
}
}
}
}
if (is != null) {
try {
is.close();
} catch (IOException e) {
is = null;
throw new RuntimeException(e);
} finally {
if (socket != null) {
try {
socket.close();
} catch (IOException e) {
socket = null;
throw new RuntimeException(e);
}
}
}
}
}
return result;
}
/**
* @Description:读取一行数据，contentLe内容长度为0时，读取响应头信息，不为0时读正文
* @time:2016年5月17日 下午6:11:07
*
*
* 读取一行数据，contentLe内容长度为0时，读取响应头信息，不为0时读正文
*
* @param is InputStream
* @param contentLength contentLength
* @param charset charset
* @return 内容
* @throws IOException IOException
*/
private static String readLine(InputStream is, int contentLength, String charset) throws IOException {
List lineByte = new ArrayList();
byte tempByte;
int cumsum = 0;
if (contentLength != 0) {
do {
tempByte = (byte) is.read();
lineByte.add(Byte.valueOf(tempByte));
cumsum++;
} while (cumsum < contentLength);// cumsum等于contentLength表示已读完
} else {
do {
tempByte = (byte) is.read();
lineByte.add(Byte.valueOf(tempByte));
} while (tempByte != 10);// 换行符的ascii码值为10
}
byte[] resutlBytes = new byte[lineByte.size()];
for (int i = 0; i < lineByte.size(); i++) {
resutlBytes[i] = (lineByte.get(i)).byteValue();
}
return new String(resutlBytes, charset);
}
/**
* 构建请求参数
*
* @param requestParams 请求参数Map
* @return 构建后的请求参数
*/
private static String getRequestString(Map requestParams) {
//请求buffer
StringBuffer requestBuffer = null;
if (requestParams != null && requestParams.size() > 0) {
requestBuffer = new StringBuffer();
for (Entry entry : requestParams.entrySet()) {
requestBuffer.append(entry.getKey());
requestBuffer.append("=");
requestBuffer.append(entry.getValue());
requestBuffer.append("&");
}
return requestBuffer.toString();
}
return "";
}
}
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