import com.alibaba.fastjson.JSONObject;
import org.apache.log4j.Logger;
import java.io.*;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.*;
public class HttpUtil {
public static String doGet(String httpurl) {
HttpURLConnection connection = null;
InputStream is = null;
BufferedReader br = null;
String result = null;// 返回结果字符串
try {
// 建立远程url链接对象
URL url = new URL(httpurl);
// 经过远程url链接对象打开一个链接，强转成httpURLConnection类
connection = (HttpURLConnection) url.openConnection();
// 设置链接方式：get
connection.setRequestMethod("GET");
// 设置链接主机服务器的超时时间：15000毫秒
connection.setConnectTimeout(15000);
// 设置读取远程返回的数据时间：60000毫秒
connection.setReadTimeout(60000);
// 发送请求
connection.connect();
// 经过connection链接，获取输入流
if (connection.getResponseCode() == 200) {
is = connection.getInputStream();
// 封装输入流is，并指定字符集
br = new BufferedReader(new InputStreamReader(is, "UTF-8"));
// 存放数据
StringBuffer sbf = new StringBuffer();
String temp = null;
while ((temp = br.readLine()) != null) {
sbf.append(temp);
sbf.append("rn");
}
result = sbf.toString();
}
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
// 关闭资源
if (null != br) {
try {
br.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (null != is) {
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
connection.disconnect();// 关闭远程链接
}
return result;
}
public static String doPost(String httpUrl, String param) {
HttpURLConnection connection = null;
InputStream is = null;
OutputStream os = null;
BufferedReader br = null;
String result = null;
try {
URL url = new URL(httpUrl);
// 经过远程url链接对象打开链接
connection = (HttpURLConnection) url.openConnection();
// 设置链接请求方式
connection.setRequestMethod("POST");
// 设置链接主机服务器超时时间：15000毫秒
connection.setConnectTimeout(15000);
// 设置读取主机服务器返回数据超时时间：60000毫秒
connection.setReadTimeout(60000);
// 默认值为：false，当向远程服务器传送数据/写数据时，须要设置为true
connection.setDoOutput(true);
// 默认值为：true，当前向远程服务读取数据时，设置为true，该参数无关紧要
connection.setDoInput(true);
// 设置传入参数的格式:请求参数应该是 name1=value1&name2=value2 的形式。
connection.setRequestProperty("Content-Type", "application/json");
// 经过链接对象获取一个输出流
os = connection.getOutputStream();
// 经过输出流对象将参数写出去/传输出去,它是经过字节数组写出的
os.write(param.getBytes());
// 经过链接对象获取一个输入流，向远程读取
if (connection.getResponseCode() == 200) {
is = connection.getInputStream();
// 对输入流对象进行包装:charset根据工做项目组的要求来设置
br = new BufferedReader(new InputStreamReader(is, "UTF-8"));
StringBuffer sbf = new StringBuffer();
String temp = null;
// 循环遍历一行一行读取数据
while ((temp = br.readLine()) != null) {
sbf.append(temp);
sbf.append("rn");
}
result = sbf.toString();
}
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
// 关闭资源
if (null != br) {
try {
br.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (null != os) {
try {
os.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (null != is) {
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
// 断开与远程地址url的链接
connection.disconnect();
}
return result;
}
public static String doPostForm(String httpUrl, Map param) {
HttpURLConnection connection = null;
InputStream is = null;
OutputStream os = null;
BufferedReader br = null;
String result = null;
try {
URL url = new URL(httpUrl);
// 经过远程url链接对象打开链接
connection = (HttpURLConnection) url.openConnection();
// 设置链接请求方式
connection.setRequestMethod("POST");
// 设置链接主机服务器超时时间：15000毫秒
connection.setConnectTimeout(15000);
// 设置读取主机服务器返回数据超时时间：60000毫秒
connection.setReadTimeout(60000);
// 默认值为：false，当向远程服务器传送数据/写数据时，须要设置为true
connection.setDoOutput(true);
// 默认值为：true，当前向远程服务读取数据时，设置为true，该参数无关紧要
connection.setDoInput(true);
// 设置传入参数的格式:请求参数应该是 name1=value1&name2=value2 的形式。
connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
// 经过链接对象获取一个输出流
os = connection.getOutputStream();
// 经过输出流对象将参数写出去/传输出去,它是经过字节数组写出的(form表单形式的参数实质也是key,value值的拼接，相似于get请求参数的拼接)
os.write(createLinkString(param).getBytes());
// 经过链接对象获取一个输入流，向远程读取
if (connection.getResponseCode() == 200) {
is = connection.getInputStream();
// 对输入流对象进行包装:charset根据工做项目组的要求来设置
br = new BufferedReader(new InputStreamReader(is, "UTF-8"));
StringBuffer sbf = new StringBuffer();
String temp = null;
// 循环遍历一行一行读取数据
while ((temp = br.readLine()) != null) {
sbf.append(temp);
sbf.append("rn");
}
result = sbf.toString();
}
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
// 关闭资源
if (null != br) {
try {
br.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (null != os) {
try {
os.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (null != is) {
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
// 断开与远程地址url的链接
connection.disconnect();
}
return result;
}
public static String createLinkString(Map params) {
List keys = new ArrayList(params.keySet());
Collections.sort(keys);
StringBuilder prestr = new StringBuilder();
for (int i = 0; i < keys.size(); i++) {
String key = keys.get(i);
String value = params.get(key);
if (i == keys.size() - 1) {// 拼接时，不包括最后一个&字符
prestr.append(key).append("=").append(value);
} else {
prestr.append(key).append("=").append(value).append("&");
}
}
return prestr.toString();
}
public static void main(String[] args) {
String url = "http://localhost:8082/api/conf/findConfList?type=1";
String getResult = HttpUtil.doGet(url);
System.out.println(getResult);
url = "http://localhost:8082/api/core/login";
JSONObject json = new JSONObject();
json.put("key", "==g43sEvsUcbcunFv3mHkIzlHO4iiUIT R7WwXuSVKTK0yugJnZSlr6qNbxsL8OqCUAFyCDCoRKQ882m6cTTi0q9uCJsq JJvxS+8mZVRP/7lWfEVt8/N9mKplUA68SWJEPSXyz4MDeFam766KEyvqZ99d");
String postResult = HttpUtil.doPost(url, json.toJSONString());
System.out.println(postResult);
url = "http://localhost:8082/api/test/testSendForm";
Map map = new HashMap<>();
map.put("name", "测试表单请求");
String formResult = HttpUtil.doPostForm(url, map);
System.out.println(formResult);
}
}
