httpclient get请求 解析response

对于 HttpClient 发送 GET 请求返回的响应，我们可以通过以下步骤进行解析：

1. 获取响应状态码：

HttpResponse response = httpClient.execute(httpGet);
int statusCode = response.getStatusLine().getStatusCode();

2. 获取响应头信息：

Header[] headers = response.getAllHeaders();
for (Header header : headers) {
    System.out.println(header.getName() + " : " + header.getValue());
}

3. 获取响应体信息：

HttpEntity entity = response.getEntity();
String responseContent = EntityUtils.toString(entity, "UTF-8");

完整的代码示例：

CloseableHttpClient httpClient = HttpClients.createDefault();
HttpGet httpGet = new HttpGet("http://www.example.com");
HttpResponse response = httpClient.execute(httpGet);

int statusCode = response.getStatusLine().getStatusCode();
System.out.println("Status Code: " + statusCode);

Header[] headers = response.getAllHeaders();
for (Header header : headers) {
    System.out.println(header.getName() + " : " + header.getValue());
}

HttpEntity entity = response.getEntity();
String responseContent = EntityUtils.toString(entity, "UTF-8");
System.out.println("Response Content: " + responseContent);

需要注意的是，这里的 EntityUtils.toString 方法需要传入编码格式参数，根据实际情况进行选择。同时，使用完 HttpClient 后需要关闭资源：

httpClient.close();