Java 400错误请求[内容长度：0，分块：false]

我正在尝试调用一个api。每当我在请求正文中包含“é”时，就会收到400个错误请求。当我记起时，一切都很好。下面是我的代码和回复

CloseableHttpClient httpClient = (CloseableHttpClient) getHttpClient();
            HttpPost httpPost = getHttpPost("xxx");
            StringEntity entity = new StringEntity(request.toString());
            entity.setChunked(false);
            httpPost.addHeader("content-type", "application/json");
            httpPost.setEntity(entity);
            System.out.println("contentlength = "+String.valueOf(entity.getContentLength()));
            CloseableHttpResponse response = (CloseableHttpResponse) httpClient.execute(httpPost);
           System.out.println("response = "
                + response);

            StatusLine statusLine = response.getStatusLine();
           System.out.println("statusLine = "
                + statusLine);

            String responseEntity = EntityUtils.toString(response.getEntity());
           System.out.println("responseEntity = "
                + responseEntity);

答复：

contentlength=964 response=HttpResponseProxy{HTTP/1.1 400错误 请求[Content-Length:0，Chunked:false]}statusLine=HTTP/1.1 400 请求响应错误=

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将内容类型设置为：

"application/json;charset=UTF-8" 

在您使用的应用程序中发送post请求时

StringEntity entity = new StringEntity(request.toString(),"UTF-8");

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这解决了问题。

尝试过。但是没有运气。