Java Apache http文件写入响应

我正在尝试将org.apache.http.HttpResponse写入文件

System.out.println("length");
System.out.println(EntityUtils.toByteArray(response.getEntity()).length);

给出了： 长度 48905367

给这个

Exception in thread "main" java.io.IOException: Attempted read from closed stream.
    at org.apache.http.impl.io.ChunkedInputStream.read(ChunkedInputStream.java:179)
    at org.apache.http.conn.EofSensorInputStream.read(EofSensorInputStream.java:137)
    at org.apache.http.conn.EofSensorInputStream.read(EofSensorInputStream.java:150)
    at org.apache.commons.io.IOUtils.copyLarge(IOUtils.java:1025)
    at org.apache.commons.io.IOUtils.copy(IOUtils.java:999)

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其他人在另一个论坛上回答了您的问题：

我也有同样的问题；我为同一内容调用了两次

response.getEntity（）

。当我评论完第二个电话后，一切都开始运转良好

以下是文档的链接：

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我不确定这是否是答案，但您需要先将响应信息设置为new class。我使用Gson库：

    Gson gson = new Gson();
    HttpResponse response = httpGetRequest("URL_ENDPOINT");
    ResponseDTO responseDTO = gson.fromJson(prettyJsonResponse(response), 
    ResponseDTO.class);

这是http get请求方法：

    private HttpResponse httpGetRequest(String url) throws Exception {
    HttpClient client = new DefaultHttpClient();
    HttpGet request = new HttpGet(url);
    return client.execute(request);
}

这是maven依赖项：

    <dependency>
        <groupId>org.apache.httpcomponents</groupId>
        <artifactId>httpclient</artifactId>
        <version>4.5.2</version>
    </dependency>

    <dependency>
        <groupId>org.apache.httpcomponents</groupId>
        <artifactId>httpclient</artifactId>
        <version>4.5.2</version>
    </dependency>

    private String prettyJsonResponse(HttpResponse response) throws IOException{
    StringBuffer result = new StringBuffer();
    String line = "";
    BufferedReader rd = new BufferedReader(
            new InputStreamReader(response.getEntity().getContent()));
    while ((line = rd.readLine()) != null) {
        result.append(line);
    }   
    return result.toString();
}