如何构建和运行okhttp 3.10.0

Question

我从https://github.com/square/okhttp克隆了代码

而且我想阅读3.10.0版本的源代码。

但是无法成功编译。

gongzelong:okhttp gongzelong$ git branch
  master
* parent-3.10.0

gongzelong:okhttp gongzelong$ mvn clean verify
[INFO] Scanning for projects...
[ERROR] [ERROR] Some problems were encountered while processing the POMs:
[ERROR] 'build.plugins.plugin[org.apache.maven.plugins:maven-surefire-plugin].dependencies.dependency.version' for org.mortbay.jetty.alpn:alpn-boot:jar must be a valid version but is '${alpn.jdk8.version}'. @ com.squareup.okhttp3:parent:3.10.0, /Users/gongzelong/Android/okhttp/pom.xml, line 320, column 28
 @ 
[ERROR] The build could not read 1 project -> [Help 1]
[ERROR]   
[ERROR]   The project com.squareup.okhttp3:okhttp:3.10.0 (/Users/gongzelong/Android/okhttp/okhttp/pom.xml) has 1 error
[ERROR]     'build.plugins.plugin[org.apache.maven.plugins:maven-surefire-plugin].dependencies.dependency.version' for org.mortbay.jetty.alpn:alpn-boot:jar must be a valid version but is '${alpn.jdk8.version}'. @ com.squareup.okhttp3:parent:3.10.0, /Users/gongzelong/Android/okhttp/pom.xml, line 320, column 28
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/ProjectBuildingException

Answer 1

您还可以将该库添加到演示项目中，android studio中将其更改为Project文件夹。您可以在外部库中找到它。

或者您可以下载它，然后使用VsCode编辑器打开并阅读。

Answer 2

对于org.mortbay.jetty.alpn：alpn-boot：jar必须是有效版本，但为'$ {alpn.jdk8.version}']

在他们的build.gradle中有

def alpnBootVersion() {
def version = System.getProperty('alpn.boot.version')

if (version != null) {
  return version
}

他们可能已在其本地gradle.properties中将alpn.jdk8.version添加为变量。用def version = System.getProperty('alpn.boot.version')更改def version = 8.1.13，这应该可以解决问题。