Post&&Get实现
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import org.apache.http.HttpEntity;
import org.apache.http.NameValuePair;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;
Get实现(Map)
1 public static String doGet(String url, Map params) {
2 String = "";
3 StringBuffer param = new StringBuffer();
4 int i = 0;
5 for (String key : params.keySet()) {
6 if (i == 0) {
7 param.append("?");
8 } else {
9 param.append("&");
10 }
11 param.append(key).append("=").append(params.get(key));
12 i++;
13 }
14 url += param;
15 CloseableHttpClient = HttpClients.createDefault();
16 CloseableHttpResponse response = null;
17 try {
18 // 创建httpGet
19 HttpGet = new HttpGet(url);
20 // 执行get请求.
21 response = httpClient.execute(httpGet);
22 // 获取响应实体
23 HttpEntity entity = response.getEntity();
24 if (entity != null) {
25 = EntityUtils.toString(entity, "UTF-8");
26 }
27 } catch (Exception e) {
28 e.printStackTrace();
29 } finally {
30 // 关闭连接,释放资源
31 try {
32 response.close();
33 httpClient.close();
34 } catch (Exception e) {
35 e.printStackTrace();
36 }
37 }
38 return httpStr;
39 }
Post实现(JSON)
public static String doPost(String url, String json) {
String = "";
CloseableHttpClient = HttpClients.createDefault();
HttpPost = new HttpPost(url);
CloseableHttpResponse response = null;
try {
StringEntity stringEntity = new StringEntity(json,"UTF-8");// 解决中文乱码问题
stringEntity.setContentEncoding("UTF-8");
stringEntity.setContentType("application/json");
httpPost.setEntity(stringEntity);
response = httpClient.execute(httpPost);
// 获取响应实体
HttpEntity entity = response.getEntity();
if (entity != null) {
= EntityUtils.toString(entity, "UTF-8");
}
} catch (Exception e) {
e.printStackTrace();
} finally {
// 关闭连接,释放资源
try {
response.close();
httpClient.close();
} catch (Exception e) {
e.printStackTrace();
}
}
return httpStr;
}
Post实现(Map)
public static String doPost(String url, Map params) {
String = "";
CloseableHttpClient = HttpClients.createDefault();
HttpPost = new HttpPost(url);
CloseableHttpResponse response = null;
try {
List pairList = new ArrayList();
for (Map.Entry entry : params.entrySet()) {
NameValuePair pair = new BasicNameValuePair(entry.getKey(),
entry.getValue().toString());
pairList.add(pair);
}
UrlEncodedFormEntity(pairList, Charset
.forName("UTF-8")));
response = httpClient.execute(httpPost);
// 获取响应实体
HttpEntity entity = response.getEntity();
if (entity != null) {
= EntityUtils.toString(entity, "UTF-8");
}
} catch (Exception e) {
e.printStackTrace();
} finally {
// 关闭连接,释放资源
try {
response.close();
httpClient.close();
} catch (Exception e) {
e.printStackTrace();
}
}
return httpStr;
}
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