首先声明一点，这里的重试并不是报错以后的重试，而是负载均衡客户端发现远程请求实例不可到达后，去重试其他实例。

? 1 2 3 4 5 6 7 8 @bean @loadbalanced resttemplate resttemplate() { httpcomponentsclienthttprequestfactory httprequestfactory = new httpcomponentsclienthttprequestfactory(); httprequestfactory.setreadtimeout(5000); httprequestfactory.setconnecttimeout(5000); return new resttemplate(httprequestfactory); }

feign重试机制

feign默认是通过自己包下的retryer进行重试配置,默认是5次

? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 package feign; import static java.util.concurrent.timeunit.seconds; /** * cloned for each invocation to {@link client#execute(request, feign.request.options)}. * implementations may keep state to determine if retry operations should continue or not. */ public interface retryer extends cloneable { /** * if retry is permitted, return (possibly after sleeping). otherwise propagate the exception. */ void continueorpropagate(retryableexception e); retryer clone(); public static class default implements retryer { private final int maxattempts; private final long period; private final long maxperiod; int attempt; long sleptformillis; public default() { this(100, seconds.tomillis(1), 5); } public default(long period, long maxperiod, int maxattempts) { this.period = period; this.maxperiod = maxperiod; this.maxattempts = maxattempts; this.attempt = 1; }

feign取消重试

? 1 2 3 4 @bean retryer feignretryer() { return retryer.never_retry; }

feign请求超时设置

? 1 2 3 4 5 6 7 @bean request.options requestoptions(configurableenvironment env){ int ribbonreadtimeout = env.getproperty("ribbon.readtimeout", int.class, 6000); int ribbonconnectiontimeout = env.getproperty("ribbon.connecttimeout", int.class, 3000); return new request.options(ribbonconnectiontimeout, ribbonreadtimeout); }

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。

原文链接：https://www.cnblogs.com/zhangjianbin/p/7228606.html