HttpURLConnection请求接口

 import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLConnection;
import java.nio.charset.StandardCharsets; import org.apache.commons.io.IOUtils;
import org.apache.commons.io.output.ByteArrayOutputStream;
import org.apache.commons.lang3.StringUtils; import cn.zsmy.constant.BaseConstant; /**
* @param path
* @param key
* @param value
* @return
*/
public static String getHttp(String path, String key, String value){
HttpURLConnection httpURLConnection = null;
InputStream bis = null;
ByteArrayOutputStream bos = null;
try {
URL url = new URL(path);
//打开连接
httpURLConnection = (HttpURLConnection) url.openConnection();
httpURLConnection.setRequestProperty("content-Type", "application/json");
httpURLConnection.setRequestProperty("charset", "utf-8");
if(key != null && value != null){
httpURLConnection.setRequestProperty(key, value);
}
BaseConstant.MY_LOG.info("===getHttp==httpURLConnection.getResponseCode()===" + httpURLConnection.getResponseCode());
if(200 == httpURLConnection.getResponseCode()){
//得到输入流
bis = httpURLConnection.getInputStream();
bos = new ByteArrayOutputStream();
byte[] buffer = new byte[1024];
int len = 0;
while(-1 != (len = bis.read(buffer))){
bos.write(buffer,0,len);
bos.flush();
}
return bos.toString("utf-8");
}
} catch (IOException e) {
e.printStackTrace();
} finally {
if(httpURLConnection != null){
httpURLConnection.disconnect();
}
if(bis != null){
try {
bis.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if(bos != null){
try {
bos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
} return null;
} /**
* POST请求获取数据
*/
public static String postHttp(String path, String params){
URL url = null;
HttpURLConnection httpURLConnection = null;
BufferedInputStream bis = null;
ByteArrayOutputStream bos = null;
try {
url = new URL(path);
httpURLConnection = (HttpURLConnection) url.openConnection();
httpURLConnection.setRequestMethod("POST");// 提交模式
httpURLConnection.setRequestProperty("content-Type", "application/json");
//httpURLConnection.setRequestProperty("charset", "utf-8");
// conn.setConnectTimeout(10000);//连接超时 单位毫秒
// conn.setReadTimeout(2000);//读取超时 单位毫秒
// 发送POST请求必须设置如下两行
httpURLConnection.setDoOutput(true);
httpURLConnection.setDoInput(true);
// 获取URLConnection对象对应的输出流
PrintWriter printWriter = new PrintWriter(httpURLConnection.getOutputStream());
// 发送请求参数
if(!StringUtils.isEmpty(params)){
printWriter.write(params);//post的参数 xx=xx&yy=yy
}
// flush输出流的缓冲
printWriter.flush(); BaseConstant.MY_LOG.info("===postHttp==httpURLConnection.getResponseCode()===" + httpURLConnection.getResponseCode()); //开始获取数据
bis = new BufferedInputStream(httpURLConnection.getInputStream());
bos = new ByteArrayOutputStream();
int len;
byte[] arr = new byte[1024];
while((len=bis.read(arr))!= -1){
bos.write(arr,0,len);
bos.flush();
}
bos.close();
return bos.toString(BaseConstant.CHARSET_UTF8);
} catch (Exception e) {
e.printStackTrace();
} finally {
if(httpURLConnection != null){
httpURLConnection.disconnect();
}
if(bis != null){
try {
bis.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if(bos != null){
try {
bos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return null;
}
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