{"id":1754,"date":"2023-03-26T21:31:42","date_gmt":"2023-03-26T13:31:42","guid":{"rendered":"https:\/\/www.appblog.cn\/?p=1754"},"modified":"2023-03-26T21:31:42","modified_gmt":"2023-03-26T13:31:42","slug":"resttemplate-java-net-unknownhostexception","status":"publish","type":"post","link":"https:\/\/www.appblog.cn\/index.php\/2023\/03\/26\/resttemplate-java-net-unknownhostexception\/","title":{"rendered":"RestTemplate java.net.UnknownHostException"},"content":{"rendered":"<p>RestTemplate \u4ee5 Spring Cloud \u57df\u540d\u65b9\u5f0f\uff08<code>http:\/\/application-name<\/code>\uff09\u5b9e\u73b0\u8d1f\u8f7d\u5747\u8861\u8c03\u7528\uff0c\u9519\u8bef\u4fe1\u606f\uff1a<\/p>\n<pre><code>Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; \nnested exception is org.springframework.web.client.ResourceAccessException: I\/O error on GET request for &quot;http:\/\/appblog-provider\/add&quot;: appblog-provider; \nnested exception is java.net.UnknownHostException: appblog-provider] with root cause\n\njava.net.UnknownHostException: appblog-provider<\/code><\/pre>\n<p><!-- more --><\/p>\n<p>\u89e3\u51b3\u65b9\u6cd5\uff1a\u52a0\u4e0a<code>@LoadBalanced<\/code><\/p>\n<pre><code class=\"language-java\">@Configuration\npublic class CommonConfig {\n\n    @Bean\n    @LoadBalanced   \/\/\u589e\u52a0 load balance \u7279\u6027\n    public RestTemplate restTemplate() {\n\n        ClientHttpRequestFactory factory = simpleClientHttpRequestFactory();\n        return new RestTemplate(factory);\n    }\n\n    public ClientHttpRequestFactory simpleClientHttpRequestFactory() {\n\n        SimpleClientHttpRequestFactory factory = new SimpleClientHttpRequestFactory();\n        factory.setReadTimeout(15000);  \/\/\u5355\u4f4d\u4e3ams\n        factory.setConnectTimeout(15000);  \/\/\u5355\u4f4d\u4e3ams\n        return factory;\n    }\n}<\/code><\/pre>\n<pre><code class=\"language-java\">@Autowired\nprivate RestTemplate restTemplate;<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>RestTemplate \u4ee5 Spring Cloud \u57df\u540d\u65b9\u5f0f\uff08http:\/\/application-nam [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[41],"tags":[253],"class_list":["post-1754","post","type-post","status-publish","format-standard","hentry","category-spring-boot","tag-resttemplate"],"_links":{"self":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/1754","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/comments?post=1754"}],"version-history":[{"count":0,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/1754\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/media?parent=1754"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/categories?post=1754"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/tags?post=1754"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}