Spring

《云原生语境下,如何重新解读微服务?》

陌路散爱 提交于 2021-02-19 05:03:26
简介: 由阿里云主办的首届“云原生微服务大会”将于 2020 年 8 月 18-19 日在线上召开。本次大会聚焦微服务架构前沿发展和业界最佳实践,重点探讨云原生语境下微服务的挑战和技术趋势,帮助企业技术决策者、架构师、开发者们迎接云原生时代的到来。 最近,O’Reilly 公布了一份关于企业微服务市场现状的数据调研。报告显示,在访问了全球 1,502 名软件工程师、系统和技术架构师、工程师以及决策者后,有 77% 的组织反馈采用了微服务,其中 92% 的组织成功使用了微服务。 如果以这份报告为依据,微服务在企业的普及率已接近八成。看起来,企业对微服务的兴趣可能已经接近顶峰。 云原生的基础设施从设计上保证了它是微服务部署的最佳平台,但是也对现有的微服务框架带来了新的挑战 ,在云原生大行其道的今天: 我们对微服务还应该继续投入精力关注吗? 云原生和微服务之间的关系是什么? 随着 Serviece Mesh 等技术的不断成熟,微服务的体系和思想会产生怎样的演化? Spring Cloud、Dubbo 还会继续作为微服务开发框架的继续流行下去吗? 容器、Kubernetes、ServiceMesh、Serverless 这些云原生时代的主角,会如何助力下一代微服务架构为业务发展赋能? 这些问题值得每一位技术从业人员去思考,并发现由此带来的企业数字化转型升级新挑战、新机遇。也许有同学会说:

SAML authenticated users don't appear in Spring Security's SessionRegistry

纵饮孤独 提交于 2021-02-19 04:57:12
问题 Our application used to have only one possibility to log in: username and password. Once a new user logged into the application, their session would appear in Spring Security's SessionRegistry . Now I'm implementing SAML support with the help of Spring SAML. I oriented the setup heavily towards the sample application's configuration. It all works fine. However I noticed that users that log in via SAML don't get their session added to the SessionRegistry . The usual context file for form based

Unable To use java.time.LocalDate in JPA entity with MySql

自古美人都是妖i 提交于 2021-02-19 04:47:07
问题 I am trying to use LocalDate in my entities and this usage has plenty of documentation around the net. Which is why I am baffled it doesn't work. Here is my error: com.mysql.jdbc.MysqlDataTruncation: Data truncation: Incorrect date value: '\xAC\xED\x00\x05sr\x00\x0Djava.time.Ser\x95]\x84\xBA\x1B"H\xB2\x0C\x00\x00xpw\x07\x03\x00\x00\x07\xD7\x0C\x03x' So, it obviously needs a converter. I have tried the following links: This one says to add the spring converters to the scan path for the

Can I mix both update and insert in saveAll from JpaRepository

限于喜欢 提交于 2021-02-19 04:43:06
问题 I am using Spring Boot and Spring Data JPA and Hibernate as the persistence provider. I have extended my Repository interface with JPARepository . I have a list of Entity Bean for a table. Some of them already exist and some of them not. I want to know what will happen when I call saveAll from my service layer and pass this List ? 回答1: If you look at the SimpleJpaRepository which is a common implementation of the CrudRepository you can see that it will simply invoke save for each of the

How can I store and load an encrypted value using custom annotation

末鹿安然 提交于 2021-02-19 04:40:06
问题 I am new to Java custom annotations I am developing a custom annotation which encrypt and decrypt a string and store it in database using spring and mongodb and for encryption I am using jasypt. I am not getting the exact procedure to do so. My code. Entity public class Demo { @Id private Long id; private String somethingPublic; @EncryptDemo() private String somethingPrivate; //getter setter } custom annotation @Target({ ElementType.METHOD, ElementType.FIELD }) @Retention(RetentionPolicy

springcloud情操陶冶-springcloud config server(三)

女生的网名这么多〃 提交于 2021-02-19 04:31:39
承接前文 springcloud情操陶冶-springcloud config server(二) ,本文就不讲述server了,就简单阐述下client的应用 前话 config server在引入的时候也依赖config client的JAR包,也就是说本身的配置服务也集成了客户端的功能。在前文的分析中,笔者了解到默认client功能是关闭的。因为在 ConfigServerBootstrapApplicationListener 指定了 spring.cloud.config.enabled=false (默认) spring.factories 笔者直接翻阅了cloud config client板块中的 spring.factories 文件 # Auto Configure org.springframework.boot.autoconfigure.EnableAutoConfiguration=\ org.springframework.cloud.config.client.ConfigClientAutoConfiguration # Bootstrap components org.springframework.cloud.bootstrap.BootstrapConfiguration=\ org.springframework.cloud.config

Error using XStream in Spring context: DuplicateFieldException

心不动则不痛 提交于 2021-02-19 04:28:12
问题 I've a problem using XStream in Spring context. The method c.t.x.XStream.addImplicitCollection(Class ownerType, String fieldName, String itemFieldName, Class itemType) doesn't work correctly if we import the xstream dependency in pom but it does work if we import xstream source code and we esclude related dependency in pom. We used the following dependencies' version: xstream : 1.4.11.1 spring-boot-dependencies : 2.1.2.RELEASE Testing fromXml with the xstream's dependency in the pom.xml we

Enable Cors using Spring 3.0.4

余生颓废 提交于 2021-02-19 04:23:04
问题 I'm using Java Spring 3.0.4 (can't upgrade due to some requirements) and I need to enable Cors in order for my front-end to talk to my back-end. My back-end is an angular application running on: http://localhost:4200/home I have tried the following with no luck: public static final String CREDENTIALS_NAME = "Access-Control-Allow-Credentials"; public static final String ORIGIN_NAME = "Access-Control-Allow-Origin"; public static final String METHODS_NAME = "Access-Control-Allow-Methods"; public

实战 | MySQL Binlog通过Canal同步HDFS

[亡魂溺海] 提交于 2021-02-19 04:02:42
大数据技术与架构 点击右侧关注,大数据开发领域最强公众号! 暴走大数据 点击右侧关注,暴走大数据! 之前 《MySQL Binlog同步HDFS的方案》 介绍性的文章简单介绍了实时同步mysql到hdfs的几种方案,本篇主要记录下利用canal同步mysql到hdfs的具体方案。 本文来自:http://bigdatadecode.club/MysqlToHDFSWithCanal.html canal server 部署 在canal中一个mysql实例对应一个配置文件,配置文件放在conf目录下的一个文件夹中,该文件夹的名字就代表了mysql实例。结构如下 -rwxr-xr-x 1 dc user 2645 Jul 18 14:25 canal.properties -rwxr-xr-x 1 dc user 2521 Jul 17 18:31 canal.properties.bak -rwxr-xr-x 1 dc user 3045 Jul 17 18:31 logback.xml drwxr-xr-x 2 dc user 4096 Jul 17 18:38 spring drwxr-xr-x 2 dc user 4096 Jul 19 11:55 trans1 trans1代表一个mysql实例,该文件夹中有个instance.properties文件

spring mvc ehcache 详细配置 亲测可用

我的未来我决定 提交于 2021-02-19 03:52:32
1.废话不多说首先配置spring pom.xml 添加dependency <dependency> <groupId>net.sf.ehcache</groupId> <artifactId>ehcache</artifactId> <version>2.9.0</version> </dependency> maven在打包时候会自动从网上下载对应的jar包。 2.写一个ehcache配置文件 ehcache-context.xml (名字可以随便起不过后面要引入) <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:cache="http://www.springframework.org/schema/cache" xsi:schemaLocation=" http://www.springframework.org/schema/context http://www.springframework.org