postman发送post请求正常,但是还是有乱码.

未设置编码导致
//调用邮件发送中心,发送邮件
CloseableHttpClient httpClient = HttpClients.createDefault();
String requestBody = null;
try{
    HttpPost httpPost = new HttpPost(EmailAndSmsSendConstant.emailServiceUrl);
    // 设置请求头部信息
    httpPost.setHeader("Content-Type", "application/json;charset=UTF-8");
    httpPost.setHeader("keyId", EmailAndSmsSendConstant.keyId);
    // 构建请求体参数
    requestBody = createEmailBody(warnType,subject,body,emailList);

    log.info("执行邮件发送,requestBody:"+requestBody);
    StringEntity entity = new StringEntity(requestBody,"UTF-8"); //增加编码设置
    httpPost.setEntity(entity);
    CloseableHttpResponse response= httpClient.execute(httpPost);
    int statusCode = response.getStatusLine().getStatusCode();
    if (statusCode == 200) {
        return true;
    }else{
        log.error("邮件发送失败,请求参数:"+requestBody+",响应参数:"+JacksonUtils.objectToJson(response));
        return false;
    }

        CloseableHttpClient httpClient = HttpClients.createDefault();
        CloseableHttpResponse response = null;
        MultipartEntityBuilder multipartEntityBuilder = MultipartEntityBuilder.create();
        multipartEntityBuilder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
        multipartEntityBuilder.setCharset(Charset.forName("UTF-8"));
        JSONObject jsonObject = null;
        String resultString = "";
        try {
            // 创建Http Post请求
            HttpPost httpPost = new HttpPost(url);
            // 创建请求内容
            ……
            List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
            ……
            httpPost.setEntity(new UrlEncodedFormEntity(nameValuePairs, HTTP.UTF_8));