How to configure the HTTP client of spring boot 2
This article mainly introduces "how to configure the HTTP client of spring boot 2". In the daily operation, I believe that many people have doubts about how to configure the HTTP client of spring boot 2. The editor consulted all kinds of materials and sorted out simple and easy-to-use methods of operation. I hope it will be helpful to answer the doubts of "how to configure the HTTP client of spring boot 2". Next, please follow the editor to study!
HTTP client
Spring Boot provides many starters who can work with HTTP clients. This section answers questions related to using them.
Configure RestTemplate to use proxies
You can use RestTemplateCustomizerwith RestTemplateBuilder to build a custom RestTemplate. This is the recommended way to create a RestTemplate configured to use a proxy.
The exact details of the agent configuration depend on the underlying client request factory being used. The following example uses the configuration HttpComponentsClientRequestFactory,HttpClient that uses agents for all hosts except 192.168.0.5:
Static class ProxyCustomizer implements RestTemplateCustomizer {
@ Override
Public void customize (RestTemplate restTemplate) {
HttpHost proxy = new HttpHost ("proxy.example.com")
HttpClient httpClient = HttpClientBuilder.create ()
.setRoutePlanner (new DefaultProxyRoutePlanner (proxy) {
@ Override
Public HttpHost determineProxy (HttpHost target
HttpRequest request, HttpContext context)
Throws HttpException {
If (target.getHostName () .equals ("192.168.0.5")) {
Return null
}
Return super.determineProxy (target, request, context)
}
}) .build ()
RestTemplate.setRequestFactory (
New HttpComponentsClientHttpRequestFactory (httpClient))
}
}
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