HttpUtil工具类的参数是什么

这篇文章将为大家详细讲解有关HttpUtil工具类的参数是什么，文章内容质量较高，因此小编分享给大家做个参考，希望大家阅读完这篇文章后对相关知识有一定的了解。

调用方工具类及测试类，支持URL及JSON同时传递参数

package com.example.demo.util;import org.apache.http.NameValuePair;import org.apache.http.client.config.RequestConfig;import org.apache.http.client.entity.UrlEncodedFormEntity;import org.apache.http.client.methods.CloseableHttpResponse;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;import org.apache.http.entity.ContentType;import java.util.ArrayList;import java.util.List;import java.util.Map;import java.util.Map.Entry;/** * Http调用工具类 *  * @author zkyong * @date 2019-07-02 15:22:22 * @version v0.1 */public class HttpUtil {    public static final String UTF_8 = "UTF-8";    /**     * 发送post请求     *      * @param url URL地址     * @param socketTimeout 建立scoket连接超时时间     * @param connectTimeout 建立数据传输连接超时时间     * @param headers 请求头参数     * @param params 请求参数     * @param json 请求体(json)参数     * @return String 响应报文     * @throws Exception 异常     */    public static String sendPost(String url, int socketTimeout, int connectTimeout,                                  Map headers, Map params,                                  String json) throws Exception {        // URL处理: 请求参数拼接到URL中传递        if (null != params && params.size() != 0) {            List list = new ArrayList<>();            for (Entry entry : params.entrySet()) {                list.add(new BasicNameValuePair(entry.getKey(), String.valueOf(entry.getValue())));            }            String uri = EntityUtils.toString(new UrlEncodedFormEntity(list, UTF_8));            if (uri != null) {                url = url.contains("?") ? (url + "&" + uri) : (url + "?" + uri);            }        }        // 构建请求: HttpPost        HttpPost post = new HttpPost(url);        RequestConfig config = RequestConfig.custom()                .setSocketTimeout(socketTimeout)                .setConnectTimeout(connectTimeout)                .setConnectionRequestTimeout(connectTimeout)                .build();        post.setConfig(config);        // 设置请求头: Header        if (null != headers && headers.size() != 0) {            for (Map.Entry entry : headers.entrySet()) {                post.addHeader(entry.getKey(), entry.getValue());            }        }        // 设置请求体: HttpEntity        if (null != json && !"".equals(json.trim())) {            post.setEntity(new StringEntity(json, ContentType.APPLICATION_JSON));        }        // 调用并返回结果        CloseableHttpClient client = null;        CloseableHttpResponse response = null;        try {            client = HttpClients.createDefault();            response = client.execute(post);            return EntityUtils.toString(response.getEntity(), UTF_8);        } finally {            if (response != null) {                response.close();            }            if (client != null) {                client.close();            }        }    }}

package com.example.demo.util;import java.util.HashMap;import java.util.Map;import org.junit.Test;/** * Http调用工具测试类 *  * @author zkyong * @date 2019-07-02 15:23:10 * @version v0.1 */public class HttpUtilTest {    @Test    public void test01() throws Exception {        String url = "http://localhost:8080/hello";        String json = "{\"hello\":\"wellcome\", \"name\":\"zhangsan\"}";        int socketTimeout = 120 * 1000;        int connectTimeout = 120 * 1000;        Map params = new HashMap<>();        params.put("p1", "param01");        params.put("p2", "param02");        params.put("p3", "param03");        params.put("p4", "param04");        Map headers = new HashMap<>();        headers.put("Content-Type", "application/json");        String response = HttpUtil.sendPost(url, socketTimeout, connectTimeout, headers, params, json);        System.out.println("==================================================");        System.out.println(response);    }}

被调用方：

package com.example.demo.web;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.springframework.web.bind.annotation.RequestBody;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.RestController;import com.example.demo.request.HelloDemoRequest;/** * HelloWorld Demo Web层 *  * @author zkyong * @date 2019-07-02 15:26:21 * @version v0.1 */@RestControllerpublic class HelloRestController {    @RequestMapping(value = "/hello", method = RequestMethod.POST)    public String hello(HttpServletRequest request,                         HttpServletResponse response,                        @RequestBody HelloDemoRequest body,                         String p1, String p2,                         String p3, String p4) {        System.out.println("enter the hello method!");        return body.getHello() + " " + body.getName() + ", params : p1=" + p1 + ",p2=" + p2 + ",p3=" + p3 + ",p4=" + p4;    }}

package com.example.demo.request;/** * HelloWorld Demo 请求类 *  * @author zkyong * @date 2019-07-02 15:01:15 * @version v0.1 */public class HelloDemoRequest {    String hello;    String name;    public String getHello() {        return hello;    }    public void setHello(String hello) {        this.hello = hello;    }    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }    @Override    public String toString() {        return "HelloDemoRequest [hello=" + hello + ", name=" + name + "]";    }}

关于HttpUtil工具类的参数是什么就分享到这里了，希望以上内容可以对大家有一定的帮助，可以学到更多知识。如果觉得文章不错，可以把它分享出去让更多的人看到。