佬们帮我看看我这post要传参的api就说不存在，用get就没问题

[Absvion]

我把group_id字段弄成字符串（ bodyMap.put("group_id",”906795766”);）也返回一样的。只要不传参数就没问题=-= 求佬们救救

`import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.HashMap;
import java.util.Map;
import com.alibaba.fastjson.JSON;

public class Dopost {

public static String sendPost(String uri, String charset,Map<String,Object> bodyMap, 
Map<String,String> headerMap) {
    String result = null;
    OutputStreamWriter out = null;
    InputStream in = null;
    try {
        URL url = new URL(uri);
        HttpURLConnection urlcon = (HttpURLConnection) url.openConnection();
        urlcon.setDoInput(true);
        urlcon.setDoOutput(true);
        urlcon.setUseCaches(false);
        urlcon.setRequestMethod("POST");
        if (!headerMap.isEmpty()){
            for (Map.Entry<String, String> entry : headerMap.entrySet()) {
                urlcon.setRequestProperty(entry.getKey(),entry.getValue());
            }
        }
        // 获取连接
        urlcon.connect();
        out = new OutputStreamWriter(urlcon.getOutputStream(),"UTF-8");
        //请求体里的内容转成json用输出流发送到目标地址
        out.write(JSON.toJSONString(bodyMap).toString());
        System.out.println("发送："+JSON.toJSONString(bodyMap).toString());
        out.flush();
        in = urlcon.getInputStream();
        BufferedReader buffer = new BufferedReader(new InputStreamReader(in, charset));
        StringBuffer bs = new StringBuffer();
        String line = null;
        while ((line = buffer.readLine()) != null) {
            bs.append(line);
        }
        result = bs.toString();
        System.out.println("接收："+result);
    } catch (Exception e) {
        System.out.println("[请求异常][地址：" + uri + "][错误信息："+ e.getMessage() + "]");
    } finally {
        try {
            if (null != in){
                in.close();
            }
            if (null != out){
                out.close();
            }
        } catch (Exception e2) {
            System.out.println("[关闭流异常][错误信息：" + e2.getMessage() + "]");
        }
    }
    return result;
}

  public static  void main(String[] args) throws IOException {
	  
	  
	  String uri="http://127.0.0.1:44857/send_group_msg";
      String charset="UTF-8";
      //请求体设置
      
      HashMap<String, Object> bodyMap = new HashMap<>();
      bodyMap.put("group_id",906795766L);
      bodyMap.put("message","testtest");
      
      //请求头设置
      HashMap<String, String> headerMap = new HashMap<>();
      headerMap.put("Content-Ttype","application/json");
      //调用
      sendPost(uri,charset,bodyMap,headerMap);

      //SimpleDateFormat df = new SimpleDateFormat("yyyyMMddHHmmssSSS");//设置日期格式
      //String date = df.format(new Date());// new Date()为获取当前系统时间，也可使用当前时间戳
	  //System.out.println(date);

	  


  }

}`

[BobLiu0518]

会不会是 Content-type 误写成 Content-Ttype 的原因（

[Absvion]

眼瞎了，就是这个问题了(
谢谢佬