修改jar配置，支持源码和doc同时编译输出

build.gradle

@@ -43,14 +43,20 @@ apply plugin: 'io.spring.dependency-management'
     [compileJava, javadoc, compileTestJava]*.options*.encoding = 'UTF-8'
 
 
-
     task sourcesJar(type: Jar, dependsOn: classes) {
             classifier = 'sources'
             from sourceSets.main.allSource
     }
 
+    task javadocJar(type: Jar, dependsOn: javadoc) {
+        classifier = 'javadoc'
+        from javadoc.destinationDir
+    }
+
+
     artifacts {
         archives sourcesJar
+        archives javadocJar
     }
 
     ext {