spring 源码编码若干问题

spring 版本 5.2.9
gradle 版本 5.6.4

1、遇到各种下载问题

1、(非常重要,能解决大部分问题)各种资源下载不到到首先更新jdk版本，建议使用11

2、配置gradle，spring 5.X 后下载需要权限，可以使用阿里的资源

下载的源码如果是编译过的，即有build文件夹如图，则不用接下来的配置

1、配置build.gradle

			mavenCentral()
			maven { url "http://maven.aliyun.com/nexus/content/groups/public/"}
			maven { url "https://repo.spring.io/libs-spring-framework-build" }
			maven { url "https://repo.spring.io/snapshot" } // Reactor
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2、参看其他博客配值
配置的文件有：build.gradle、settings.gradle
配置的内容有：下载源、kotlin版本

3、配置idea

1、配置settings
File->settings->Build Execution Deployment->Build Tools->Gradle

2、配置kotlin
File->settings->Build Execution Deployment->Compiler->Kotlin Compiler

3、配置project
File->Project structure->project

4、配置Modules
File->Project structure->Modules

4、公共问题

1、gradle下载地址和版本
(使用本地下载的gradle、不要每次都从网络下载)影响速度

2、配置gradle下载参数

org.gradle.daemon=true//开启守护进程
#通过开启守护进程，下一次构建的时候，将会连接这个守护进程进行构建，而不是重新 fork 一个 gradle构建进程
org.gradle.configureondemand=true//按需加载
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3、git报错或者权限报错Received status code 401 from server: Unauthorized
不是从git中拉下来的所以报错没有权限下载

Build file 'E:\myProject\spring-master\spring\build.gradle' line: 3

Error resolving plugin [id: 'io.spring.gradle-enterprise-conventions', version: '0.0.2']
> Could not resolve all dependencies for configuration 'detachedConfiguration2'.
   > Could not determine artifacts for io.spring.gradle-enterprise-conventions:io.spring.gradle-enterprise-conventions.gradle.plugin:0.0.2
      > Could not get resource 'https://repo.spring.io/plugins-release/io/spring/gradle-enterprise-conventions/io.spring.gradle-enterprise-conventions.gradle.plugin/0.0.2/io.spring.gradle-enterprise-conventions.gradle.plugin-0.0.2.jar'.
         > Could not HEAD 'https://repo.spring.io/plugins-release/io/spring/gradle-enterprise-conventions/io.spring.gradle-enterprise-conventions.gradle.plugin/0.0.2/io.spring.gradle-enterprise-conventions.gradle.plugin-0.0.2.jar'. Received status code 401 from server: Unauthorized
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修改build.gradle
注释:

id 'io.spring.gradle-enterprise-conventions' version '0.0.2'
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4、POM relocation to an other version number is not fully supported in Gradle : xml-apis:xml-apis:2.0.2 relocated to xml-apis:xml-apis:1.0.b2.
jar包问题
修改build.gradle