2018-04-26 遇到的一點(diǎn)小問題
準(zhǔn)備把項(xiàng)目里的一個(gè)庫，打包成aar后引用，網(wǎng)上找了下，很多相關(guān)的，步驟也很簡單。但是引用后運(yùn)行卻出錯(cuò)了java.lang.NoClassDefFoundError: Failed resolution of。網(wǎng)上找了下看到2.1 以外部compile形式所依賴的包，也不會(huì)被打包進(jìn)aar難怪打的aar那么小。需要的外部引用還要自己用這個(gè)aar的時(shí)候再寫一遍好吧，感覺太麻煩了。放棄，換個(gè)方法。

以外部compile形式所依賴的包，也不會(huì)被打包進(jìn)aar

使用jCenter倉庫

試試使用jCenter倉庫，這樣下次依賴可以方便點(diǎn)。網(wǎng)上找了下正好看到這篇寫了很多字?jǐn)?shù)的文，試試看。先去Bintray注冊賬號(hào)，這個(gè)網(wǎng)上找一下很多，懶得復(fù)制了。

不過我用GitHub賬號(hào)登錄時(shí)卻失敗了，因?yàn)镚itHub那里用的是qq郵箱注冊，而Bintray無法使用又無法修改。twitter基本不用，所以用的Google賬號(hào)登錄綁定注冊。為了下次也能直接用GitHub賬號(hào)登錄，又上個(gè)人中心的Accounts里綁定GitHub賬號(hào)，這樣下次也能直接GitHub登錄了。

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弄好相關(guān)信息后，開始按照文章里寫的在項(xiàng)目的build.gradle里添加classpath 'com.novoda:bintray-release:0.3.4'，但馬上就報(bào)錯(cuò)了。Gradle sync failed: Cause: org.gradle.api.internal.component.Usage

Consult IDE log for more details
Unable to load class 'org.gradle.api.internal.component.Usage'.
Possible causes for this unexpected error include:<ul><li>Gradle's dependency cache may be corrupt (this sometimes occurs after a network connection timeout.)
Re-download dependencies and sync project (requires network)</li><li>The state of a Gradle build process (daemon) may be corrupt. Stopping all Gradle daemons may solve this problem.
Stop Gradle build processes (requires restart)</li><li>Your project may be using a third-party plugin which is not compatible with the other plugins in the project or the version of Gradle requested by the project.</li></ul>In the case of corrupt Gradle processes, you can also try closing the IDE and then killing all Java processes.

Gradle sync failed: Cause: org.gradle.api.internal.component.Usage

dependencies {
        classpath 'com.android.tools.build:gradle:3.1.2'
        classpath 'com.novoda:bintray-release:0.8.1'
}

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按README.md里的說明，在Module的build.gradle填寫：

apply plugin: 'com.novoda.bintray-release'

publish {
    userOrg = 'novoda'//bintray.com用戶名
    groupId = 'com.novoda'//引用路徑
    artifactId = 'bintray-release'//項(xiàng)目名稱
    publishVersion = '0.6.1'//版本號(hào)
    desc = 'Oh hi, this is a nice description for a project, right?'//描述
    website = 'https://github.com/novoda/bintray-release'//網(wǎng)站
}

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填寫好后繼續(xù)按要求在Terminal面板操作，輸入命令：

gradlew clean build bintrayUpload -PbintrayUser=用戶名 -PbintrayKey=APIKey -PdryRun=false

復(fù)制APIKey

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然后并沒有按文章上說的正常完成，而是出現(xiàn)錯(cuò)誤信息：Android gradle Unsupported major.minor version 52.0。網(wǎng)上查了下，說是JDK版本問題，正好也有提示Support for running Gradle using Java 7 has been deprecated and is scheduled to be removed in Gradle 5.0. Please see https://docs.gradle.org/4.4/userguide/java_plugin.html#sec:java_cross_compilation for more details.。因?yàn)橹半娔X的jdk是jdk1.7.0_79，所以這次就順便下載了最新的jdk1.8.0_172并配置了環(huán)境變量。配好后又測試，結(jié)果還是一直不行。折騰很久無奈又網(wǎng)上找了下，才發(fā)現(xiàn)配置環(huán)境變量后要重啟電腦。。。

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重啟后再測試，這次運(yùn)行時(shí)間長了點(diǎn)，以為快可以時(shí)，又出問題了。錯(cuò)誤: 編碼GBK的不可映射字符

> Task :jpush:releaseAndroidJavadocs FAILED
錯(cuò)誤: 編碼GBK的不可映射字符
100 個(gè)錯(cuò)誤
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':jpush:releaseAndroidJavadocs'.
> Javadoc generation failed. Generated Javadoc options file (useful for troubleshooting): 
'D:\rrg\OD\Lib\wannoo\build\tmp\releaseAndroidJavadocs\javadoc.options'

錯(cuò)誤: 編碼GBK的不可映射字符

快放棄時(shí)突然想起用的是novoda/bintray-release，說不定issues里會(huì)有相關(guān)的問題。找了一下，果然看到了LuckyJayce的回答。趕緊在項(xiàng)目的build.gradle的allprojects里添加添加代碼試一下：

tasks.withType(Javadoc) {
      options{
            encoding "UTF-8"
            charSet 'UTF-8'
            links "http://docs.oracle.com/javase/7/docs/api"
    }
}

tasks.withType(Javadoc)

org.apache.http.conn.HttpHostConnectException