接口參數(shù)使用postman調(diào)用如圖所示，只能使用form-data格式調(diào)用

使用java代碼發(fā)送http請求實(shí)現(xiàn)此種方式的接口調(diào)用

public static String doPostForm(String url, HashMap<String, String> map) throws Exception {
        String result = "";
        CloseableHttpClient client = null;
        CloseableHttpResponse response = null;
        RequestConfig defaultRequestConfig = RequestConfig.custom().setSocketTimeout(550000).setConnectTimeout(550000)
                .setConnectionRequestTimeout(550000).setStaleConnectionCheckEnabled(true).build();
        client = HttpClients.custom().setDefaultRequestConfig(defaultRequestConfig).build();
        // client = HttpClients.createDefault();
        URIBuilder uriBuilder = new URIBuilder(url);

        HttpPost httpPost = new HttpPost(uriBuilder.build());
        httpPost.setHeader("Connection", "Keep-Alive");
        httpPost.setHeader("Charset", "UTF-8");
        httpPost.setHeader("Content-Type", "application/x-www-form-urlencoded");
        Iterator<Map.Entry<String, String>> it = map.entrySet().iterator();
        List<NameValuePair> params = new ArrayList<NameValuePair>();

        while (it.hasNext()) {
            Map.Entry<String, String> entry = it.next();
            NameValuePair pair = new BasicNameValuePair(entry.getKey(), entry.getValue());
            params.add(pair);
        }

        httpPost.setEntity(new UrlEncodedFormEntity(params, "UTF-8"));
        try {
            response = client.execute(httpPost);
            if (response != null) {
                HttpEntity resEntity = response.getEntity();
                if (resEntity != null) {
                    result = EntityUtils.toString(resEntity, "UTF-8");
                }
            }
        } catch (ClientProtocolException e) {
            throw new RuntimeException("創(chuàng)建連接失敗" + e);
        } catch (IOException e) {
            throw new RuntimeException("創(chuàng)建連接失敗" + e);
        }

        return result;
    }

特別說明：form的Content-Type屬性為編碼方式文章來源地址http://www.zghlxwxcb.cn/news/detail-528242.html

• 常用有兩種：application/x-www-form-urlencoded和multipart/form-data，默認(rèn)為application/x-www-form-urlencoded。
• x-www-form-urlencoded：當(dāng)action為get時(shí)候，瀏覽器用x-www-form-urlencoded的編碼方式把form數(shù)據(jù)轉(zhuǎn)換成一個(gè)字串（name1=value1&name2=value2…），然后把這個(gè)字串a(chǎn)ppend到url后面，用?分割，加載這個(gè)新的url。
• multipart/form-data：當(dāng)action為post時(shí)候，瀏覽器把form數(shù)據(jù)封裝到http body中，然后發(fā)送到server。 如果沒有type=file的控件，用默認(rèn)的application/x-www-form-urlencoded就可以了。 但是如果有type=file的話，就要用到multipart/form-data了。瀏覽器會(huì)把整個(gè)表單以控件為單位分割，并為每個(gè)部分加上Content-Disposition(form-data或者file),Content-Type(默認(rèn)為text/plain),name(控件name)等信息，并加上分割符(boundary)。

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