gradle

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Maven-aliyun仓库 | Maven-jcenter仓库 | Maven-central仓库 | Maven-google仓库

spring initializr
https://start.spring.io/


gradle -q javaToolchains

安装多版本jdk:
wget https://download.oracle.com/java/21/latest/jdk-21_linux-x64_bin.rpm
rpm -ivh jdk-21_linux-x64_bin.rpm
wget  https://download.oracle.com/java/17/archive/jdk-17.0.10_linux-x64_bin.rpm
rpm -ivh jdk-17.0.10_linux-x64_bin.rpm

切换版本
update-alternatives --config java
update-alternatives --config javac

ERROR!!!
java.lang.UnsupportedClassVersionError: Main has been compiled by a more recent version of the Java Runtime (class file version 65.0), 
this version of the Java Runtime only recognizes class file versions up to 61.0

This is just a version mismatch. You have compiled your code using Java version 9 and your current JRE is version 8. Try upgrading your JRE to 9.
49 = Java 5
50 = Java 6
51 = Java 7
52 = Java 8
53 = Java 9
54 = Java 10
55 = Java 11
56 = Java 12
57 = Java 13
58 = Java 14
59 = Java 15
60 = Java 16
61 = Java 17
62 = Java 18
63 = Java 19
64 = Java 20
65 = Java 21

WikiItem xyz <div class='test'>xyz</div>

<div class='test'>xyz</div>
<b>xyz</b>
jcenter()
mavenCentral()
google()
maven {url:maven-url}

google 的 maven 仓库是不支持浏览的，如果你需要下载特定一个库，可以自行拼接这样的地址 
https://dl.google.com/dl/android/maven2/com/android/databinding/compiler/3.0.1/compiler-3.0.1-sources.jar 来进行下载

    repositories {
        // maven库
        def aliMaven = "http://maven.aliyun.com/nexus/content/groups/public/"
        def cMaven = "https://repo1.maven.org/maven2"
        // 先从url中下载jar若没有找到，则在artifactUrls中寻找
        maven {
            url aliMaven
            artifactUrls cMaven
        }
    }

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Gradle整合jetty的第一个HelloWorld工程

Building Java Web Applications

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Gradle学习系列

安装gradle插件
eclipse中依次打开“Help”–》“Eclipse Marketplace”,在搜索栏中输入“buildship”进行搜索

gradle tasks --all   显示所有的tasks

gradle properties    显示所有project属性

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Gradle – Spring 4 MVC Hello World Example

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gradle例程

helloword

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Gradle教程和指南 - 创建Gradle构建

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Centos7下gradle 安装

CentOS7安装gradle

cd /usr
wget https://downloads.gradle.org/distributions/gradle-4.5.1-all.zip
unzip gradle-4.5.1

#vim /etc/profile
    export GRADLE_HOME=/usr/gradle-4.5.1
    export PATH=${GRADLE_HOME}/bin:${PATH}
    export GRADLE_USER_HOME=$GRADLE_HOME/.gradle

gradle -version

mkdir javatest
cd javatest
mkdir src/com/test/hello
gradle init
...
gradle build
./gradlew run

#vim build.gradle
    apply plugin: 'java'
    apply plugin: 'application'

    mainClassName = 'hello.HelloWorld'

    repositories {
        mavenLocal()
        mavenCentral()
    }

    dependencies {
        compile "joda-time:joda-time:2.2"
    }

    jar {
        baseName = 'test1-gradle'
        version = '0.1.0'

        manifest {
            attributes(
                'Class-Path': configurations.compile.collect { it.getName() }.join(' '),
                'Main-Class': 'main.java.hello.HelloWorld'
            )
        }
    }

    task wrapper(type: Wrapper) {
        gradleVersion = '1.11'
    }