java docking proxy ip: Java integrated proxy ip program

Hands-on teaching Java docking proxy IP, read it and use it!

Friends engaged in data collection should understand that the proxy IP with good, the project ran early. Today we nag Java project how to quickly access the proxy, focusing on the followingipipgoThe specifics of this service provider are guaranteed to get you up and running in three minutes.

The core operation: applying a proxy shell to a request

Setting up a proxy in Java is mainly divided into two positions, starting with the most common way. For example, when sending a request with HttpClient, add a proxy parameter and you're done:

// Set up the proxy server (use ipipgo's node for the example)
HttpHost proxy = new HttpHost("proxy.ipipgo.com", 9021);
RequestConfig config = RequestConfig.custom()
    .setProxy(proxy)
    .setProxy(proxy); .build();

CloseableHttpClient client = HttpClients.custom()
    .setDefaultRequestConfig(config)
    .build();
// Just send the request as normal.

Note that the port number is based on theipipgoFill in what the backend gives you, the ports may be different for different packages. If you use OkHttp, it's easier to just add a proxy parameter when constructing the client:

Proxy proxy = new Proxy(Proxy.Type.HTTP,
    new InetSocketAddress("proxy.ipipgo.com", 9021));
OkHttpClient client = new OkHttpClient.Builder()
    .proxy(proxy)
    .build();

How to play with dynamic agents? Automatic switching has a trick up its sleeve

For scenarios that require dynamic IP switching, it is recommended to use a thread pool to manage the proxy pool. Here is a practical tip to share:

// The IP pool to get from ipipgo
List ipPool = ipipgoApi.getProxyList();

ExecutorService pool = Executors.newFixedThreadPool(5);
ipPool.forEach(ip -> {
    pool.execute(() -> {
        // Use a different proxy for each thread
        System.setProperty("http.proxyHost", ip.split(":")[0]);
        System.setProperty("http.proxyPort", ip.split(":")[1]);
        // Execute the specific business logic
    }).
}).

remember that duringipipgoThe background sets up automatic switching intervals, which works better with timed tasks to refresh the IP pool. Their API return format isip:port:expiration time, take care to handle exceptions when parsing.

Guide to avoiding pitfalls: don't step on these mines

Frequently Asked Questions QA

Q: What should I do if my proxy IP is often blocked?
A: It is recommended to use ipipgo's dynamic residential IP, their IP pool is updated every day 2 million +, pro-test survival rate is higher than the ordinary server room IP 60%

Q: What about the need for high concurrency?
A: Use ipipgo's API to get the IP list and do load balancing with connection pooling. Pay attention to control the amount of requests per second, do not exceed the package limit

Q: Does the test agent take effect?
A: Add a detection interface to the code, such as accessing thehttp://test.ipipgo.com/checkipThis will return the proxy IP that is currently being used

Cost Control Tips

I'd like to share a money-saving trick: mix ipipgo's short-lived IPs (which expire in 3 minutes) with long-lived IPs. Use the long-lasting IP for tasks with low timeliness and the short-lasting IP for tasks that require high-frequency switching, so that the cost can be reduced by about 40%.

As a final reminder, choosing a proxy type depends on the specific scenario. If it is a business that requires high anonymity, go directly to ipipgo'sOverseas Enterprise Level AgentsIt's a bit more expensive but it's really solid. Just use their shared pool for normal gathering tasks, it's pretty cost effective to pay by volume.