post請求失敗

今天寫介面，在聯調。我要呼叫隊友php的介面資料，而要求使用post請求。

而當我寫好程式碼，跑起來，卻說我沒有傳參。最後發現，是因為我使用的工具類的方法是把引數拼到了url後面，而不是放到請求體中，所以導致拿不到資料。

我用的工具類的方法：

public static String doPost(String host, String path,
                                      Map<String, String> querys)
            throws Exception {
        HttpClient httpClient = wrapClient(host);

        HttpPost request = new
 
 HttpPost(buildUrl(host, path, querys));

        HttpResponse response = httpClient.execute(request);

        int respCode = response.getStatusLine().getStatusCode();

        if(respCode!=200){
            return null;
        }

        return EntityUtils.toString(response.getEntity());
    }



    private
 
 static HttpClient wrapClient(String host) {
        HttpClient httpClient = new DefaultHttpClient();
        if (host.startsWith("https://")) {
            sslClient(httpClient);
        }
        return httpClient;
    }
    private static void sslClient(HttpClient httpClient) {
        try {
            SSLContext ctx = SSLContext.getInstance("TLS"
 
);
            X509TrustManager tm = new X509TrustManager() {
                @Override
                public X509Certificate[] getAcceptedIssuers() {
                    return null;
                }
                @Override
                public void checkClientTrusted(X509Certificate[] xcs, String str) {

                }
                @Override
                public void checkServerTrusted(X509Certificate[] xcs, String str) {

                }
            };
            ctx.init(null, new TrustManager[] { tm }, null);
            SSLSocketFactory ssf = new SSLSocketFactory(ctx);
            ssf.setHostnameVerifier(SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
            ClientConnectionManager ccm = httpClient.getConnectionManager();
            SchemeRegistry registry = ccm.getSchemeRegistry();
            registry.register(new Scheme("https", 443, ssf));
        } catch (KeyManagementException ex) {
            throw new RuntimeException(ex);
        } catch (NoSuchAlgorithmException ex) {
            throw new RuntimeException(ex);
        }
    }
    private static String buildUrl(String host, String path, Map<String, String> querys) throws UnsupportedEncodingException {
        StringBuilder sbUrl = new StringBuilder();
        sbUrl.append(host);
        if (!StringUtils.isBlank(path)) {
            sbUrl.append(path);
        }
        if (null != querys) {
            StringBuilder sbQuery = new StringBuilder();
            for (Map.Entry<String, String> query : querys.entrySet()) {
                if (0 < sbQuery.length()) {
                    sbQuery.append("&");
                }
                if (StringUtils.isBlank(query.getKey()) && !StringUtils.isBlank(query.getValue())) {
                    sbQuery.append(query.getValue());
                }
                if (!StringUtils.isBlank(query.getKey())) {
                    sbQuery.append(query.getKey());
                    if (!StringUtils.isBlank(query.getValue())) {
                        sbQuery.append("=");
                        sbQuery.append(URLEncoder.encode(query.getValue(), "utf-8"));
                    }
                }
            }
            if (0 < sbQuery.length()) {
                sbUrl.append("?").append(sbQuery);
            }
        }

        return sbUrl.toString();
    }

它就是把引數拼接到url上，而這樣子，當發起post請求，會拒絕了。說我沒有傳引數。

意思就是說，對方不會從url裡去取，而是從報文訊息體中取。

搞了好久都不成功，最終我找到了另一個代替的工具方法：

    public static String getHttpResult(String path) throws IOException {
        /*0、初始化要傳送的資料用list儲存*/
        List<NameValuePair> list=new ArrayList<NameValuePair>();
        String orderId = new Date().getTime() + "";
        list.add(new BasicNameValuePair("Agent_SerialNo", orderId));
        list.add(new BasicNameValuePair("Account_No", "21011000000053"));
        list.add(new BasicNameValuePair("Balance", "1"));
        list.add(new BasicNameValuePair("Service_Type", "6"));
        /*1、通過path設定傳送方式*/

        HttpPost post=new HttpPost(path);
        /*2、建立客戶端*/
        HttpClient client=new DefaultHttpClient();
        //通過post表單方式傳送資料給伺服器

        //建立表單
        UrlEncodedFormEntity entity=new UrlEncodedFormEntity(list,"utf-8");
        //裝載到post中
        post.setEntity(entity);

        HttpResponse response=client.execute(post);
        /*3、得到輸入流*/
        if(response.getStatusLine().getStatusCode()==200){
            InputStream in=response.getEntity().getContent();

            /*4、讀取流準備工作*/
            ByteArrayOutputStream bos=new ByteArrayOutputStream();
            byte[]arr=new byte [1024];
            int len=0;

            /*5、讀取並寫入*/
            while((len=in.read(arr))!=-1){
                bos.write(arr, 0, len);
            }
            byte[]b=bos.toByteArray();
            return new String(b,0,b.length);
        }

        return null;
    }