unicode字符串的gson序列化不起作用

ssk*_*ssk 5 java unicode android utf-8 gson

我正在使用gson库将我的数据序列化为json格式的字符串.当我在服务器上收到json消息时,我得到一个unicode字符的问号.例如,我从我的Android客户端发送以下内容:

{"message_content":"This is a test message: ????? ??????"}
Run Code Online (Sandbox Code Playgroud)

但服务器接收它为:

{"message_content":"This is a test message: ???? ??????"}
Run Code Online (Sandbox Code Playgroud)

码:

import java.io.UnsupportedEncodingException;

import android.telephony.PhoneNumberUtils;

import com.google.gson.Gson;

import com.google.gson.GsonBuilder;
import com.google.gson.annotations.SerializedName;

public class TestMessage {

    @SerializedName("message_content")
    private String mMessageContent;

    public TestMessage(String messageContent) {

        try {
            byte[] utf8 = messageContent.getBytes("UTF-8");
            mMessageContent = new String(utf8, "UTF-8");
        } catch (UnsupportedEncodingException e) {
            mMessageContent = messageContent;
        }
    }

    public String toJSON() {
        Gson gson = new GsonBuilder().create();
        return gson.toJson(this);
    }
} 
Run Code Online (Sandbox Code Playgroud)

ssk*_*ssk 5

我调试后发现HTTP帖子不支持UTF-8。关注此帖子:发送http post / put时,Android默认字符集-特殊字符问题

httpPost.setEntity(new StringEntity(body, HTTP.UTF_8));
Run Code Online (Sandbox Code Playgroud)