PS：这个jar包，在2007年之后就没有更新过了， 是比较老的版本了。追求新的版本 用HttpComponents 比较好
引入的jar包为：
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<!-- https://mvnrepository.com/artifact/commons-httpclient/commons-httpclient --><dependency> <groupId>commons-httpclient</groupId> <artifactId>commons-httpclient</artifactId> <version>3.1</version></dependency> |
具体实现类为：
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import org.apache.commons.httpclient.HttpClient;import org.apache.commons.httpclient.methods.GetMethod;import org.apache.commons.httpclient.methods.PostMethod;import org.apache.commons.httpclient.methods.RequestEntity;import org.apache.commons.httpclient.methods.StringRequestEntity;import org.apache.commons.httpclient.params.HttpMethodParams;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import java.io.IOException;public class HttpClientHelper { private HttpClientHelper() { } /** * 发起POST请求 * * @param url url * @param paramJson 参数的json格式 */ public static String sendPost(String url, String paramJson) { logger.info("开始发起POST请求，请求地址为{}，参数为{}", url, paramJson); // 创建httpClient实例对象 HttpClient httpClient = new HttpClient(); // 设置httpClient连接主机服务器超时时间：15000毫秒 httpClient.getHttpConnectionManager().getParams().setConnectionTimeout(15000); // 创建post请求方法实例对象 PostMethod postMethod = new PostMethod(url); // 设置post请求超时时间 postMethod.getParams().setParameter(HttpMethodParams.SO_TIMEOUT, 60000); postMethod.addRequestHeader("Content-Type", "application/json"); try { //json格式的参数解析 RequestEntity entity = new StringRequestEntity(paramJson, "application/json", "UTF-8"); postMethod.setRequestEntity(entity); httpClient.executeMethod(postMethod); String result = postMethod.getResponseBodyAsString(); postMethod.releaseConnection(); return result; } catch (IOException e) { logger.error("POST请求发出失败，请求的地址为{}，参数为{}，错误信息为{}", url, paramJson, e.getMessage(), e); } return null; } /** * 发起GET请求 * * @param urlParam url请求，包含参数 */ public static String sendGet(String urlParam) { logger.info("开始发起GET请求，请求地址为{}", urlParam); // 创建httpClient实例对象 HttpClient httpClient = new HttpClient(); // 设置httpClient连接主机服务器超时时间：15000毫秒 httpClient.getHttpConnectionManager().getParams().setConnectionTimeout(15000); // 创建GET请求方法实例对象 GetMethod getMethod = new GetMethod(urlParam); // 设置post请求超时时间 getMethod.getParams().setParameter(HttpMethodParams.SO_TIMEOUT, 60000); getMethod.addRequestHeader("Content-Type", "application/json"); try { httpClient.executeMethod(getMethod); String result = getMethod.getResponseBodyAsString(); getMethod.releaseConnection(); logger.info("返回信息为{}", result); return result; } catch (IOException e) { logger.error("GET请求发出失败，请求的地址为{}，错误信息为{}", urlParam, e.getMessage(), e); } return null; } public static void main(String[] args) { String url = "https://jiashubing.cn/tencenttest"; String param = "{\"aaa\":\"bbbbbbb\"}"; sendPost(url, param); String urlParam = "https://jiashubing.cn/talk/document?fileid=1234"; sendGet(urlParam); }} |
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：https://www.cnblogs.com/acm-bingzi/p/commons_httpclient.html
