24、http请求post形式发送map数据至SpringMVC的web项目中参数为map的方法

1.首先我们在web项目的Controller类中添加参数为Map<String,String> map的方法：

package cn.tedu.spring.controller;import java.util.Map;import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;@Controller
public class UserController {/*** 注意參數中要添加@RequestParam註解，因為此註解會獲取前端發送的所有數據；* 如果不添加，則map獲取不到數據；**method=RequestMethod.POST,produces="application/json;charset=UTF-8"可以不添加，method不指定则Post及get都能接收;*而post数据web.xml中已经添加了字符集过滤器，来指定解析方式为utf-8***********************************************************filter><filter-name>CharacterEncodingFilter</filter-name><filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class><init-param><param-name>encoding</param-name><param-value>utf-8</param-value></init-param></filter><filter-mapping><filter-name>CharacterEncodingFilter</filter-name><url-pattern>/*</url-pattern></filter-mapping>************************************************************ @param map*/@RequestMapping(value="/map.do",method=RequestMethod.POST,produces="application/json;charset=UTF-8")@ResponseBodypublic void  setPOSTMap(@RequestParam Map<String,String> map){System.out.print(map);}
}

2.http post传递map 代码，此代码为网上复制
原链接为：https://blog.51cto.com/13919357/2177244

package com.fjnx.history;import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Map;import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpMethod;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.commons.httpclient.URIException;
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.apache.commons.httpclient.protocol.Protocol;
import org.apache.commons.httpclient.util.URIUtil;
import org.apache.commons.lang.StringUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;/*** HTTP工具类* 发送http/https协议get/post请求，发送map，json，xml，txt数据** @author happyqing 2016-5-20*/
public final class HttpUtil {private static Log log = LogFactory.getLog(HttpUtil.class);/*** 执行一个http/https get请求，返回请求响应的文本数据** @param url           请求的URL地址* @param queryString   请求的查询参数,可以为null* @param charset       字符集* @param pretty        是否美化* @return              返回请求响应的文本数据*/public static String doGet(String url, String queryString, String charset, boolean pretty) {StringBuffer response = new StringBuffer();HttpClient client = new HttpClient();if(url.startsWith("https")){//https请求Protocol myhttps = new Protocol("https", new MySSLProtocolSocketFactory(), 443);Protocol.registerProtocol("https", myhttps);}HttpMethod method = new GetMethod(url);try {if (StringUtils.isNotBlank(queryString))//对get请求参数编码，汉字编码后，就成为%式样的字符串method.setQueryString(URIUtil.encodeQuery(queryString));client.executeMethod(method);if (method.getStatusCode() == HttpStatus.SC_OK) {BufferedReader reader = new BufferedReader(new InputStreamReader(method.getResponseBodyAsStream(), charset));String line;while ((line = reader.readLine()) != null) {if (pretty)response.append(line).append(System.getProperty("line.separator"));elseresponse.append(line);}reader.close();}} catch (URIException e) {log.error("执行Get请求时，编码查询字符串“" + queryString + "”发生异常！", e);} catch (IOException e) {log.error("执行Get请求" + url + "时，发生异常！", e);} finally {method.releaseConnection();}return response.toString();}/*** 执行一个http/https post请求，返回请求响应的文本数据** @param url       请求的URL地址* @param params    请求的查询参数,可以为null* @param charset   字符集* @param pretty    是否美化* @return          返回请求响应的文本数据*/public static String doPost(String url, Map<String, String> params, String charset, boolean pretty) {StringBuffer response = new StringBuffer();HttpClient client = new HttpClient();if(url.startsWith("https")){//https请求Protocol myhttps = new Protocol("https", new MySSLProtocolSocketFactory(), 443);Protocol.registerProtocol("https", myhttps);}PostMethod method = new PostMethod(url);//设置参数的字符集method.getParams().setParameter(HttpMethodParams.HTTP_CONTENT_CHARSET,charset);//设置post数据if (params != null) {//HttpMethodParams p = new HttpMethodParams();for (Map.Entry<String, String> entry : params.entrySet()) {//p.setParameter(entry.getKey(), entry.getValue());method.setParameter(entry.getKey(), entry.getValue());}//method.setParams(p);}try {client.executeMethod(method);if (method.getStatusCode() == HttpStatus.SC_OK) {BufferedReader reader = new BufferedReader(new InputStreamReader(method.getResponseBodyAsStream(), charset));String line;while ((line = reader.readLine()) != null) {if (pretty)response.append(line).append(System.getProperty("line.separator"));elseresponse.append(line);}reader.close();}} catch (IOException e) {log.error("执行Post请求" + url + "时，发生异常！", e);} finally {method.releaseConnection();}return response.toString();}/*** 执行一个http/https post请求， 直接写数据 json,xml,txt** @param url       请求的URL地址* @param params    请求的查询参数,可以为null* @param charset   字符集* @param pretty    是否美化* @return          返回请求响应的文本数据*/public static String writePost(String url, String content, String charset, boolean pretty) {StringBuffer response = new StringBuffer();HttpClient client = new HttpClient();if(url.startsWith("https")){//https请求Protocol myhttps = new Protocol("https", new MySSLProtocolSocketFactory(), 443);Protocol.registerProtocol("https", myhttps);}PostMethod method = new PostMethod(url);try {//设置请求头部类型参数//method.setRequestHeader("Content-Type","text/plain; charset=utf-8");//application/json,text/xml,text/plain//method.setRequestBody(content); //InputStream,NameValuePair[],String//RequestEntity是个接口，有很多实现类，发送不同类型的数据RequestEntity requestEntity = new StringRequestEntity(content,"text/plain",charset);//application/json,text/xml,text/plainmethod.setRequestEntity(requestEntity);client.executeMethod(method);if (method.getStatusCode() == HttpStatus.SC_OK) {BufferedReader reader = new BufferedReader(new InputStreamReader(method.getResponseBodyAsStream(), charset));String line;while ((line = reader.readLine()) != null) {if (pretty)response.append(line).append(System.getProperty("line.separator"));elseresponse.append(line);}reader.close();}} catch (Exception e) {log.error("执行Post请求" + url + "时，发生异常！", e);} finally {method.releaseConnection();}return response.toString();}public static void main(String[] args) {try {String y = doGet("http://video.sina.com.cn/life/tips.html", null, "GBK", true);System.out.println(y);
//              Map params = new HashMap();
//              params.put("param1", "value1");
//              params.put("json", "{\"aa\":\"11\"}");
//              String j = doPost("http://localhost/uplat/manage/test.do?reqCode=add", params, "UTF-8", true);
//              System.out.println(j);} catch (Exception e) {// TODO Auto-generated catch blocke.printStackTrace();}}}

package com.fjnx.history;import org.apache.commons.httpclient.ConnectTimeoutException;
import org.apache.commons.httpclient.params.HttpConnectionParams;
import org.apache.commons.httpclient.protocol.ProtocolSocketFactory;import javax.net.SocketFactory;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
import java.io.IOException;
import java.net.*;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;/*** author by lpp ** created at 2010-7-26 上午09:29:33 */
public class MySSLProtocolSocketFactory implements ProtocolSocketFactory {private SSLContext sslcontext = null;private SSLContext createSSLContext() {SSLContext sslcontext = null;try {// sslcontext = SSLContext.getInstance("SSL");  sslcontext = SSLContext.getInstance("TLS");sslcontext.init(null,new TrustManager[] { new TrustAnyTrustManager() },new java.security.SecureRandom());} catch (NoSuchAlgorithmException e) {e.printStackTrace();} catch (KeyManagementException e) {e.printStackTrace();}return sslcontext;}private SSLContext getSSLContext() {if (this.sslcontext == null) {this.sslcontext = createSSLContext();}return this.sslcontext;}public Socket createSocket(Socket socket, String host, int port, boolean autoClose)throws IOException, UnknownHostException {return getSSLContext().getSocketFactory().createSocket(socket, host, port, autoClose);}public Socket createSocket(String host, int port) throws IOException, UnknownHostException {return getSSLContext().getSocketFactory().createSocket(host, port);}public Socket createSocket(String host, int port, InetAddress clientHost, int clientPort)throws IOException, UnknownHostException {return getSSLContext().getSocketFactory().createSocket(host, port, clientHost, clientPort);}public Socket createSocket(String host, int port, InetAddress localAddress,int localPort, HttpConnectionParams params) throws IOException,UnknownHostException, ConnectTimeoutException {if (params == null) {throw new IllegalArgumentException("Parameters may not be null");}int timeout = params.getConnectionTimeout();SocketFactory socketfactory = getSSLContext().getSocketFactory();if (timeout == 0) {return socketfactory.createSocket(host, port, localAddress, localPort);} else {Socket socket = socketfactory.createSocket();SocketAddress localaddr = new InetSocketAddress(localAddress, localPort);SocketAddress remoteaddr = new InetSocketAddress(host, port);socket.bind(localaddr);socket.connect(remoteaddr, timeout);return socket;}}// 自定义私有类  private static class TrustAnyTrustManager implements X509TrustManager {public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {}public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {}public X509Certificate[] getAcceptedIssuers() {return new X509Certificate[] {};}}}

测试代码

package com.fjnx.history;import java.util.HashMap;
import java.util.Map;/*** @Author Xu Debu* @ClassName: com.fjnx.history* @Description:* @Date 2020/2/16*/
public class Test {public static void main(String[] args) {String methodUrl = "http://192.168.1.114:8089/Springmvc-responsebody/map.do";Map<String,String> map=new HashMap<>();map.put("你","好");HttpUtil.doPost(methodUrl,map,"utf-8",true);}
}

web服务端执行结果

{你=好}

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