如何使用Jersey(JAX-RS 2.0)客户端为内容编码启用gzip压缩? [英] How to enable gzip compression for content encoding with Jersey (JAX-RS 2.0) client?

问题描述

我有一个使用JAX-RS 2.0的Jersey实现的Java应用程序，并且我想在客户端启用gzip压缩.服务器已启用它，并且通过在Chrome中的开发人员工具中的大小/内容"中查找客户端正在使用的特定URL，我已经进行了验证.

I have a Java application that uses the Jersey implementation of JAX-RS 2.0 and I want to enable gzip compression on the client side. The server has it enabled and I have verified that by looking in Chrome at the "Size/Content" in the Developer Tools for the specific URL the client is using.

我看到网上有很多信息和文档，内容涉及设置带有过滤器的HTTP标头和带有拦截器的响应主体解码，而我无法解读客户端中实际需要编写的代码.

I see a lot of information and documentation floating around the web about setting the HTTP Headers with filters and decoding response bodies with interceptors and I cannot decipher what I actually need to code in the client.

我有此代码:

private synchronized void initialize() {
    Client client = ClientBuilder.newClient();
    client.register(new HttpBasicAuthFilter(username, password));
    WebTarget targetBase = client.target(getBaseUrl());
    ...
}

我应该添加些什么来启用压缩?

What should I add to enable compression?

推荐答案

修改为:

private synchronized void initialize() {
    Client client = ClientBuilder.newClient();
    client.register(new HttpBasicAuthFilter(username, password));
    client.register(GZipEncoder.class);
    WebTarget targetBase = client.target(getBaseUrl());
    ...
    // new lines here:
    Invocation.Builder request = targetBase.request(MEDIA_TYPE);
    request.header(HttpHeaders.ACCEPT_ENCODING, "gzip");
    ...
}

在此示例中，有一些我未在示例中引用的字段和方法(例如MEDIA_TYPE)，您必须自己弄清楚这些字段和方法.应该很简单.

In this example, there are some fields and methods being referenced that I don't include in the example (such as MEDIA_TYPE), you'll have to figure those out yourself. Should be pretty straight forward.

我通过分析响应头并监视应用程序网络使用情况来验证了此工作.根据我所做的网络使用情况检查，我得到了10:1的压缩比.没错，是的！

I verified this worked by analyzing the response headers and monitoring the application network usage. I got a 10:1 compression ration according to the network usage checks I did. That seems about right, yay!

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