<dependency>
   <groupId>commons-httpclient</groupId>
   <artifactId>commons-httpclient</artifactId>
   <version>3.1</version>
</dependency>

    public static String postJsonMethodParamsEncode(String postURL,Map<String,String> destMap){
        log.info(
 
"postJsonMethodParamsEncode request postURL:"+postURL);
        try {
            PostMethod postMethod = null;
            postMethod = new PostMethod(postURL) ;
            postMethod.setRequestHeader("Content-Type", "application/x-www-form-urlencoded;charset=utf-8") ;
            NameValuePair[] data 
 
= new NameValuePair[destMap.size()];
            int i = 0;
            for (String key : destMap.keySet()){
                data[i] = new NameValuePair(key,destMap.get(key));
                i++;
            }

            postMethod.setRequestBody(data);
            HttpClient httpClient = new HttpClient();
            
 
int response = httpClient.executeMethod(postMethod);
            return postMethod.getResponseBodyAsString() ;
        } catch (Exception e) {
            log.error("請求異常:",e);
            throw new RuntimeException(e.getMessage());
        }
    }