怎么调用httputil工具类

Posted 2023-03-29

参考技术A 以java为例，调用httputil示例如下：
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.commons.httpclient.methods.GetMethod;
import org.apache.commons.httpclient.methods.PostMethod;
import org.apache.commons.httpclient.params.HttpMethodParams;
import org.apache.commons.io.IOUtils;
import org.apache.commons.lang.StringUtils;
/**
* <p>Http工具类
*
* <p>Http工具类，为系统提供通用Http访问操作方法：
*
* <p>1、发送GET请求；
* <p>2、发送POST请求。
*
*/
public class HttpUtil
/**
* <p>发送GET请求
*
* @param url GET请求地址
*
* @return 与当前请求对应的响应内容字节数组
*
*/
public static byte[] doGet(String url)
return HttpUtil.doGet(url , null , null , 0);

/**
* <p>发送GET请求
*
* @param url GET请求地址
* @param headerMap GET请求头参数容器
*
* @return 与当前请求对应的响应内容字节数组
*
*/
public static byte[] doGet(String url , Map headerMap)
return HttpUtil.doGet(url , headerMap , null , 0);

/**
* <p>发送GET请求
*
* @param url GET请求地址
* @param proxyUrl 代理服务器地址
* @param proxyPort 代理服务器端口号
*
* @return 与当前请求对应的响应内容字节数组
*
* @modify 窦海宁, 2012-03-19
*/
public static byte[] doGet(String url , String proxyUrl , int proxyPort)
return HttpUtil.doGet(url , null , proxyUrl , proxyPort);

/**
* <p>发送GET请求
*
* @param url GET请求地址
* @param headerMap GET请求头参数容器
* @param proxyUrl 代理服务器地址
* @param proxyPort 代理服务器端口号
*
* @return 与当前请求对应的响应内容字节数组
*
* @modify 窦海宁, 2012-03-19
*/
public static byte[] doGet(String url , Map headerMap , String proxyUrl , int proxyPort)
byte[] content = null;
HttpClient httpClient = new HttpClient();
GetMethod getMethod = new GetMethod(url);
if (headerMap != null)
//头部请求信息
if (headerMap != null)
Iterator iterator = headerMap.entrySet().iterator();
while (iterator.hasNext())
Entry entry = (Entry) iterator.next();
getMethod.addRequestHeader(entry.getKey().toString() , entry.getValue().toString());



if (StringUtils.isNotBlank(proxyUrl))
httpClient.getHostConfiguration().setProxy(proxyUrl , proxyPort);

//设置成了默认的恢复策略，在发生异常时候将自动重试3次，在这里你也可以设置成自定义的恢复策略
getMethod.getParams().setParameter(HttpMethodParams.SO_TIMEOUT , 10000);
//postMethod.getParams().setParameter(HttpMethodParams.RETRY_HANDLER , new DefaultHttpMethodRetryHandler());
InputStream inputStream = null;
try
if (httpClient.executeMethod(getMethod) == HttpStatus.SC_OK)
//读取内容
inputStream = getMethod.getResponseBodyAsStream();
content = IOUtils.toByteArray(inputStream);
else
System.err.println("Method failed: " + getMethod.getStatusLine());

catch (IOException ex)
ex.printStackTrace();
finally
IOUtils.closeQuietly(inputStream);
getMethod.releaseConnection();

return content;

/**
* <p>发送POST请求
*
* @param url POST请求地址
* @param parameterMap POST请求参数容器
*
* @return 与当前请求对应的响应内容字节数组
*
*/
public static byte[] doPost(String url , Map parameterMap)
return HttpUtil.doPost(url , null , parameterMap , null , null , 0);

/**
* <p>发送POST请求
*
* @param url POST请求地址
* @param parameterMap POST请求参数容器
* @param paramCharset 参数字符集名称
*
* @return 与当前请求对应的响应内容字节数组
*
* @modify 窦海宁, 2012-05-21
*/
public static byte[] doPost(String url , Map parameterMap , String paramCharset)
return HttpUtil.doPost(url , null , parameterMap , paramCharset , null , 0);

/**
* <p>发送POST请求
*
* @param url POST请求地址
* @param headerMap POST请求头参数容器
* @param parameterMap POST请求参数容器
* @param paramCharset 参数字符集名称
*
* @return 与当前请求对应的响应内容字节数组
*
* @modify 窦海宁, 2012-05-21
*/
public static byte[] doPost(String url , Map headerMap , Map parameterMap , String paramCharset)
return HttpUtil.doPost(url , headerMap , parameterMap , paramCharset , null , 0);

/**
* <p>发送POST请求
*
* @param url POST请求地址
* @param parameterMap POST请求参数容器
* @param paramCharset 参数字符集名称
* @param proxyUrl 代理服务器地址
* @param proxyPort 代理服务器端口号
*
* @return 与当前请求对应的响应内容字节数组
*
*/
public static byte[] doPost(String url , Map parameterMap , String paramCharset , String proxyUrl , int proxyPort)
return HttpUtil.doPost(url , null , parameterMap , paramCharset , proxyUrl , proxyPort);

/**
* <p>发送POST请求
*
* @param url POST请求地址
* @param headerMap POST请求头参数容器
* @param parameterMap POST请求参数容器
* @param paramCharset 参数字符集名称
* @param proxyUrl 代理服务器地址
* @param proxyPort 代理服务器端口号
*
* @return 与当前请求对应的响应内容字节数组
*
* @modify 窦海宁, 2012-05-21
*/
public static byte[] doPost(String url , Map headerMap , Map parameterMap , String paramCharset , String proxyUrl , int proxyPort)
byte[] content = null;
HttpClient httpClient = new HttpClient();
PostMethod postMethod = new PostMethod(url);
if (StringUtils.isNotBlank(paramCharset))
postMethod.getParams().setContentCharset(paramCharset);
postMethod.getParams().setHttpElementCharset(paramCharset);

if (headerMap != null)
//头部请求信息
if (headerMap != null)
Iterator iterator = headerMap.entrySet().iterator();
while (iterator.hasNext())
Entry entry = (Entry) iterator.next();
postMethod.addRequestHeader(entry.getKey().toString() , entry.getValue().toString());



Iterator iterator = parameterMap.keySet().iterator();
while (iterator.hasNext())
String key = (String) iterator.next();
postMethod.addParameter(key , (String) parameterMap.get(key));

if (StringUtils.isNotBlank(proxyUrl))
httpClient.getHostConfiguration().setProxy(proxyUrl , proxyPort);

//设置成了默认的恢复策略，在发生异常时候将自动重试3次，在这里你也可以设置成自定义的恢复策略
postMethod.getParams().setParameter(HttpMethodParams.SO_TIMEOUT , 10000);
//postMethod.getParams().setParameter(HttpMethodParams.RETRY_HANDLER , new DefaultHttpMethodRetryHandler());
InputStream inputStream = null;
try
if (httpClient.executeMethod(postMethod) == HttpStatus.SC_OK)
//读取内容
inputStream = postMethod.getResponseBodyAsStream();
content = IOUtils.toByteArray(inputStream);
else
System.err.println("Method failed: " + postMethod.getStatusLine());

catch (IOException ex)
ex.printStackTrace();
finally
IOUtils.closeQuietly(inputStream);
postMethod.releaseConnection();

return content;

public static void main(String[] args)
Map<String, String> map = new HashMap<String, String>();
map.put("wd", "nima");
byte[] b = doGet("http://www.baidu.com", map);
System.out.println("-------------------"+new String(b));

参考技术B 怎么调用httputil工具类
主要是设置两个地方：
1，info.plist中配置的URL Schemes

2.
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
// TestApp2是TestApp2这个app在info.plist中配置的URL Schemes
if ([[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:@"TestApp2://"]])
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"TestApp2://success=1&count=100"]];


return YES;


- (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url
NSString *receText = [[url host] stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSLog(@"%@ %@",receText, url.absoluteString);

return YES;

HttpUtil工具类

HttpUtil工具类

mavne配置

<dependency>
	<groupId>org.apache.httpcomponents</groupId>
	<artifactId>httpcore</artifactId>
	<version>4.4.10</version>
</dependency>
<dependency>
	<groupId>org.apache.httpcomponents</groupId>
	<artifactId>httpclient</artifactId>
	<version>4.5.6</version>
</dependency>

HttpUtil.java

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.nio.charset.Charset;

import org.apache.http.client.config.RequestConfig;
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.impl.conn.PoolingHttpClientConnectionManager;

import lombok.extern.slf4j.Slf4j;

@Slf4j
public class HttpUtil 

	private static CloseableHttpClient httpClient;

	static 
		PoolingHttpClientConnectionManager cm = new PoolingHttpClientConnectionManager();
		cm.setMaxTotal(100);
		cm.setDefaultMaxPerRoute(20);
		cm.setDefaultMaxPerRoute(50);
		httpClient = HttpClients.custom().setConnectionManager(cm).build();
	

	public static String get(String url) 
		log.info("HttpClient.get:", url);
		CloseableHttpResponse response = null;
		BufferedReader in = null;
		String result = "";
		try 
			HttpGet httpGet = new HttpGet(url);
			RequestConfig requestConfig = RequestConfig.custom().setConnectTimeout(30000)
					.setConnectionRequestTimeout(30000).setSocketTimeout(30000).build();
			httpGet.setConfig(requestConfig);
			httpGet.setConfig(requestConfig);
			httpGet.addHeader("Content-type", "application/json; charset=utf-8");
			httpGet.setHeader("Accept", "application/json");
			response = httpClient.execute(httpGet);
			in = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
			StringBuffer sb = new StringBuffer("");
			String line = "";
			String NL = System.getProperty("line.separator");
			while ((line = in.readLine()) != null) 
				sb.append(line + NL);
			
			in.close();
			result = sb.toString();
		 catch (IOException e) 
			e.printStackTrace();
		 finally 
			try 
				if (null != response) 
					response.close();
				
			 catch (IOException e) 
				e.printStackTrace();
			
		
		return result;
	

	public static String post(String url, String jsonString) 
		log.info("HttpClient.post:,", url, jsonString);
		CloseableHttpResponse response = null;
		BufferedReader in = null;
		String result = "";
		try 
			HttpPost httpPost = new HttpPost(url);
			RequestConfig requestConfig = RequestConfig.custom().setConnectTimeout(30000)
					.setConnectionRequestTimeout(30000).setSocketTimeout(30000).build();
			httpPost.setConfig(requestConfig);
			httpPost.setConfig(requestConfig);
			httpPost.addHeader("Content-type", "application/json; charset=utf-8");
			httpPost.setHeader("Accept", "application/json");
			httpPost.setEntity(new StringEntity(jsonString, Charset.forName("UTF-8")));
			response = httpClient.execute(httpPost);
			in = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
			StringBuffer sb = new StringBuffer("");
			String line = "";
			String NL = System.getProperty("line.separator");
			while ((line = in.readLine()) != null) 
				sb.append(line + NL);
			
			in.close();
			result = sb.toString();
		 catch (IOException e) 
			e.printStackTrace();
		 finally 
			try 
				if (null != response) 
					response.close();
				
			 catch (IOException e) 
				e.printStackTrace();
			
		
		return result;