HttpClient POST传参, SpringMVC接受

我们在做Http请求的时候,客户端会从服务端传一个复杂的参数,但是,大家知道,用GET请求会出现转义字符报错等问题,请求会失败,这时候我们用POST请求传参数,注意此方支持时候HTTP和HTTPS两种协议,在URL上面要标注,我这里是HTTP协议.

客户端代码一:

import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
import org.apache.http.conn.ClientConnectionManager;
import org.apache.http.conn.scheme.Scheme;
import org.apache.http.conn.scheme.SchemeRegistry;
import org.apache.http.conn.ssl.SSLSocketFactory;
import org.apache.http.impl.client.DefaultHttpClient;
//用于进行Https请求的HttpClient
public class SSLClient extends DefaultHttpClient{
	public SSLClient() throws Exception{
        super();
        SSLContext ctx = SSLContext.getInstance("TLS");
        X509TrustManager tm = new X509TrustManager() {
                @Override
                public void checkClientTrusted(X509Certificate[] chain,
                        String authType) throws CertificateException {
                }
                @Override
                public void checkServerTrusted(X509Certificate[] chain,
                        String authType) throws CertificateException {
                }
                @Override
                public X509Certificate[] getAcceptedIssuers() {
                    return null;
                }
        };
        ctx.init(null, new TrustManager[]{tm}, null);

        SSLSocketFactory ssf = new SSLSocketFactory(ctx,SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
        ClientConnectionManager ccm = this.getConnectionManager();
        SchemeRegistry sr = ccm.getSchemeRegistry();
        sr.register(new Scheme("https", 443, ssf));
    }
}

客户端代码二

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;
/*
 * 利用HttpClient进行post请求的工具类
 */
public class HttpClientUtil {
	public String doPost(String url,Map<String,String> map,String charset){
		HttpClient httpClient = null;
		HttpPost httpPost = null;
		String result = null;
		try{
			httpClient = new SSLClient();
			httpPost = new HttpPost(url);
			//设置参数
			List<NameValuePair> list = new ArrayList<NameValuePair>();
			Iterator iterator = map.entrySet().iterator();
			while(iterator.hasNext()){
				Entry<String,String> elem = (Entry<String, String>) iterator.next();
				list.add(new BasicNameValuePair(elem.getKey(),elem.getValue()));
			}
			if(list.size() > 0){
				UrlEncodedFormEntity entity = new UrlEncodedFormEntity(list,charset);
				httpPost.setEntity(entity);
			}
			HttpResponse response = httpClient.execute(httpPost);
			if(response != null){
				HttpEntity resEntity = response.getEntity();
				if(resEntity != null){
					result = EntityUtils.toString(resEntity,charset);
				}
			}
		}catch(Exception ex){
			ex.printStackTrace();
		}
		return result;
	}


  

/**测试代码,此处注意请求地址必须要有权限,我这里用的shiro拦截,因为要登录,为了避免登录,此处要把

url 放开,如果你的服务端框架没有任何拦截器(不用登陆),则不需要做放开权限的操作,关于shiro使用,可以 咨询我的QQ:243517277 ***/

public static void main(String[] args){  
    String url = "http://127.0.0.1:8080/dlcgsdzda_web/";  
    String charset = "utf-8";  
    HttpClientUtil httpClientUtil = new HttpClientUtil();
    String httpOrgCreateTest = url + "redict/test.do";  
    Map<String,String> createMap = new HashMap<String,String>();  
    createMap.put("name","左国斌");  
    createMap.put("pass","admin");  
    createMap.put("key","@#!`\\\\\\\\");  
    createMap.put("value","<>#$@#%^");  
    createMap.put("url",httpOrgCreateTest);
    String httpOrgCreateTestRtn = httpClientUtil.doPost(httpOrgCreateTest,createMap,charset);  
    System.out.println("result:"+httpOrgCreateTestRtn);  
} 

}

服务端代码,我这里用到的是springMVC,注意可以用@ModelAttribute接受POST请求的参数

package org.aisino.dlcgsController;

import java.util.HashMap;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
@RequestMapping(value = "/redict")
public class T {

	@RequestMapping(value = "/test", method = RequestMethod.POST)
	@ResponseBody
	public Map<String,Object> test(HttpServletRequest request,
			@ModelAttribute("url")String url,
			@ModelAttribute("name")String name,
			@ModelAttribute("pass")String pass,
			@ModelAttribute("key")String key,
			@ModelAttribute("value")String value
			) {
   	Map<String, Object> map=new HashMap<String, Object>();
   	map.put("url", url);
   	map.put("name", name);
   	map.put("pass", pass);
   	map.put("key", key);
   	map.put("value", value);
   	return map;
   }
}

注意,httpcilent要依赖httpclient-4.4.jar,我这里上传了,这里还包含了其他用途的jar,例如模仿客户端文件上传的jar,都在其中,大家按选择挑选.

HttpClient POST传参, SpringMVC接受

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