resttemplate

Spring Boot RestTemplate 绕过HTTPS证书验证--解决https证书报错

由 百般思念 提交于 2019-12-10 19:56:53
1.Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request p… sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target… 调用微信端获取openid的接口结果一直报https证书的问题，明明之前都已经获得了openid,结果不知道为什么又给报这个错。。。。。令人头秃。找了好多博客最后也忘了是借鉴哪位大佬的解决了问题。 解决方法如下： 1.在com.httpclient包下创建一个SSL类代码如下 package com . httpclient ; import org . springframework . http . client . SimpleClientHttpRequestFactory ; import javax . net . ssl . * ; import java . io . IOException ; import java . net . HttpURLConnection ; import java . security .

springcloud之模拟微服务环境

由 纵饮孤独 提交于 2019-12-10 18:48:35
创建聚合服务 1-创建父功能new Maven Project 修改pom.xml <?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>cn.test</groupId> <artifactId>spring_cloud_demo</artifactId> <version>1.0-SNAPSHOT</version> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.1.6.RELEASE</version> </parent> <properties> <project.build

Required String parameter is not present with Spring RestTemplate

由 ぃ、小莉子 提交于 2019-12-10 17:36:46
问题 I am having trouble to post 2 parameters with RestTemplate : a String a MultipartFile I don't think there is a problem in my controller because it's very basic. It seems that the controller doesn't received the name parameter. Could you tell me what's wrong in my code The controller (the receiver) @RequestMapping(value="/fileupload", method=RequestMethod.POST) public void handleFileUpload(@RequestParam("name") String fileUploadHandlerName, @RequestParam("file") MultipartFile file) { [...] }

Resttemplate GET Request with Custom Headers

由 放肆的年华 提交于 2019-12-10 16:49:34
问题 I need to send a GET request with a header: Content-Type: application/camiant-msr-v2.0+xml . I expect an XML response from the server. I tested the request and response with Postman and everything is good. But when I try to do it in Spring with RestTemplate , I always get a 400 bad request. The exceptions from spring are: Jul 09, 2016 12:53:38 PM org.apache.catalina.core.StandardWrapperValve invoke SEVERE: Servlet.service() for servlet [dispatcherServlet] in context with path [/smp] threw

RestTemplate.postForObject - Error: org.springframework.web.client.HttpClientErrorException: 400 Bad Request

由 泪湿孤枕 提交于 2019-12-10 15:53:59
问题 I'm trying to consume a service in this way: import java.util.ArrayList; import java.util.List; import org.springframework.http.converter.FormHttpMessageConverter; import org.springframework.http.converter.HttpMessageConverter; import org.springframework.http.converter.StringHttpMessageConverter; import org.springframework.web.client.RestTemplate; public class StatesAPI { private RestTemplate restTemplate; private String apiEndpoint = "http://service/Geo.svc/getsomethingJson?format=json";

Spring RestTemplate UnsupportedOperationException with Collections$UnmodifiableCollection.add(Unknown Source)

由 拈花ヽ惹草 提交于 2019-12-10 15:30:08
问题 This is our rest template config @Bean public RestTemplate infoBloxRestTemplate() { RestTemplate restTemplate=new RestTemplate(); ArrayList<ClientHttpRequestInterceptor> interceptors = new ArrayList<>(); interceptors.add(httpBasicAuthenticationInterceptor()); restTemplate.setInterceptors(interceptors); restTemplate.getMessageConverters().add(jacksonConverter()); restTemplate.setRequestFactory(genericHttpRequestFactory()); return restTemplate; } We are trying to make a POST call which works

Streaming large files with spring mvc

由 谁说胖子不能爱 提交于 2019-12-10 11:53:22
问题 I'm trying to create an application that download and uploads large files, so I don't want the file contents to be stored in memory. On the mvc controller side I'm using an http message converter that converts to / from InputStream @Override public InputStream read(Class<? extends InputStream> clazz, HttpInputMessage inputMessage) throws IOException, HttpMessageNotReadableException { return inputMessage.getBody(); } @Override public void write(InputStream t, MediaType contentType,

How to Parse only a portion of a web JSON in Java using RestTemplate?

由 浪尽此生 提交于 2019-12-10 11:37:29
问题 I'm trying to get the first 5 articles from this API: https://newsapi.org/v2/top-headlines?sources=bbc-news&apiKey=19acc3a371d145ecb37a093f9985ea21 My code works perfectly for now, but it parses all 10 articles of NewsAPI. The code is: public News parse() { return restTemplate.getForObject ("https://newsapi.org/v2/top-headlines?sources=bbc-news&apiKey=19acc3a371d145ecb37a093f9985ea21", News.class); } } and the result is: { "totalResults": 10, "articles": [ { "source": { "id": "bbc-news",

getting 403 forbidden error [duplicate]

由 江枫思渺然 提交于 2019-12-10 10:28:41
问题 This question already has answers here : 403 Forbidden with Java but not web browser? (4 answers) Closed last year . Getting 403 forbidden for below code, though "https://jsonplaceholder.typicode.com/posts/1" works in postman @ComponentScan @EnableAutoConfiguration public class Application { public static void main(String[] args) { RestTemplate rt = new RestTemplate(); HttpHeaders headers = new HttpHeaders(); headers.setAccept(Arrays.asList(MediaType.APPLICATION_JSON)); HttpEntity<String>

Spring Cloud第四篇 | 客户端负载均衡Ribbon

由 痴心易碎 提交于 2019-12-10 10:12:59
​ 本文是Spring Cloud专栏的 第四篇 文章，了解 前三篇 文章内容有助于更好的理解本文： ​Spring Cloud第一篇 | Spring Cloud前言及其常用组件介绍概览 Spring Cloud第二篇 | 使用并认识Eureka注册中心 Spring Cloud第三篇 | 搭建高可用Eureka注册中心 一、Ribbon是什么 Ribbon是一个基于HTTP和TCP的客户端负载均衡器，当使用Ribbon对服务进行访问的时候，他会扩展Eureka客户端的服务发现功能，实现从Eureka注册中心获取服务端列表，并通过Eureka客户端来确定服务端是否已经启动。Ribbon在Eureka客户端服务发现的基础上，实现对服务实例的选择策略，从而实现对服务的负载均衡消费。负载均衡在系统架构中是一个非常重要的内容，因为负载均衡是对系统的高可用、网络的压力的缓冲和处理能力扩容的重要手段之一，我们通常说的负载均衡都是指的是服务端的负载均衡，其中分为硬件负载均衡和软件负载均衡。 硬件负载均衡： 主要通过服务器节点之间安装专门用于负载均衡的设备，比如F5，深信服，Array等。 软件负载均衡： 则是通过服务器上安装一些具有负载功能或模块的软件来完成请求分发工作，比如Nginx、LVS、HAProxy等。 硬件负载均衡的设备或是软件负载均衡的软件模块都会维护一个下挂可用的服务端清单
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