try { Socket client = new Socket(socketUrl,socketPort); client.setSoTimeout(socketTimeOut); OutputStream is = client.getOutputStream(); BufferedReader br = new BufferedReader(new InputStreamReader(client .getInputStream())); is.write(json.getBytes(StandardCharsets.UTF_8)); StringBuilder stringBuilder = new StringBuilder(); String dataResult = ""; while ((dataResult = br.readLine()) != null){ stringBuilder.append(dataResult); } log.info("【服务端返回的数据】receive={}",JsonFormatUtil.GsonFormatToString(stringBuilder.toString())); String returnData = stringBuilder.toString(); returnData = returnData.substring(24, returnData.length()); return returnData; } catch (IOException e) { log.error("sendSocket error e={}",e.getMessage()); throw new RuntimeException("网络通讯异常，请稍后再试"); }这段代码中怎么关闭Socket

在这段代码中，需要手动关闭Socket的输入流、输出流和Socket本身，以释放相关资源。修改后的代码如下：

try {
    Socket client = new Socket(socketUrl, socketPort);
    client.setSoTimeout(socketTimeOut);
    OutputStream os = client.getOutputStream();
    BufferedReader br = new BufferedReader(new InputStreamReader(client.getInputStream()));
    os.write(json.getBytes(StandardCharsets.UTF_8));
    StringBuilder stringBuilder = new StringBuilder();
    String dataResult = "";
    while ((dataResult = br.readLine()) != null) {
        stringBuilder.append(dataResult);
    }
    log.info("【服务端返回的数据】receive={}",JsonFormatUtil.GsonFormatToString(stringBuilder.toString()));
    String returnData = stringBuilder.toString();
    returnData = returnData.substring(24, returnData.length());
    // 关闭输入流、输出流和Socket
    br.close();
    os.close();
    client.close();
    return returnData;
} catch (IOException e) {
    log.error("sendSocket error e={}",e.getMessage());
    throw new RuntimeException("网络通讯异常，请稍后再试");
}

在try块中使用了Socket、OutputStream和BufferedReader对象，需要在finally块中关闭这些对象。为了确保这些对象都能被关闭，在finally块中使用try-catch语句关闭它们。修改后的代码如下：

Socket client = null;
OutputStream os = null;
BufferedReader br = null;
try {
    client = new Socket(socketUrl, socketPort);
    client.setSoTimeout(socketTimeOut);
    os = client.getOutputStream();
    br = new BufferedReader(new InputStreamReader(client.getInputStream()));
    os.write(json.getBytes(StandardCharsets.UTF_8));
    StringBuilder stringBuilder = new StringBuilder();
    String dataResult = "";
    while ((dataResult = br.readLine()) != null) {
        stringBuilder.append(dataResult);
    }
    log.info("【服务端返回的数据】receive={}",JsonFormatUtil.GsonFormatToString(stringBuilder.toString()));
    String returnData = stringBuilder.toString();
    returnData = returnData.substring(24, returnData.length());
    return returnData;
} catch (IOException e) {
    log.error("sendSocket error e={}",e.getMessage());
    throw new RuntimeException("网络通讯异常，请稍后再试");
} finally {
    try {
        if (br != null) {
            br.close();
        }
        if (os != null) {
            os.close();
        }
        if (client != null) {
            client.close();
        }
    } catch (IOException e) {
        log.error("close socket error e={}", e.getMessage());
    }
}