问题的过程：

1.我试图通过发送一个表单数据得到响应，这里是结果和Postman的详细信息（成功地在Postman中获得数据）：
1.有一个错误抛出：“请求被拒绝，因为没有找到multipart边界“

问题详情：

这是请求头

this is the Postman request details

这是请求体

this is the request body

HttpUtil.java相关方法如下：

public static String PostFormdata(String url, Map<String, String> map) {
    MultipartEntityBuilder builder = MultipartEntityBuilder.create();

    for(String key:map.keySet()){
        builder.addTextBody(key, map.get(key));
    }
    String result = null;
    try {
        HttpPost httpPost = new HttpPost(url);
        HttpEntity multipart = builder.build();
        httpPost.setHeader("Content-Type", "multipart/form-data");
        httpPost.setHeader("Accept", "application/json");
        httpPost.setConfig(requestConfig);
        httpPost.setEntity(multipart);
        CloseableHttpResponse response = httpClient.execute(httpPost);

        HttpEntity httpEntity = response.getEntity();
        result = EntityUtils.toString(httpEntity, "UTF-8");
    } catch (IOException e) {
        e.printStackTrace();
    }
    return result;
}

以下是我的用法：

Map<String, String> params = new HashMap<String, String>();

params.put("username", "user01");
params.put("password", "abcd");
params.put("entryid", "111");
params.put("beginDate", "2023-08-01");
params.put("endDate", "2023-10-06");

Map<String, String> param = new HashMap<String, String>();
param.put("params", params.toString());

String result = HttpClientUtils.PostFormdata(url, param);

我想从POST请求中获得正确的结果