Service Builder使用life-ray 7时出现错误

Question

我在Liferay 7上工作。我是Liferay的新手，我遇到了一个我花了太多时间的问题。

我有一个portlet，我决定创建一个Service Builder (名为"Employee")。这是我的service.xml：

   <?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE service-builder PUBLIC "-//Liferay//DTD Service Builder 7.0.0//EN" "http://www.liferay.com/dtd/liferay-service-builder_7_0_0.dtd">
<service-builder package-path="com.test">
    <author>sachin.singh</author>
    <namespace>crud</namespace>

    <entity name="Employee" table="user" local-service="true" remote-service="true">
        <column name="iduser" type="int" primary="true" id-type="increment"/>
        <column name="name" type="String" />
        <column name="secret_code" type="String" />
    </entity>
</service-builder>

当我使用liferay服务构建器进行构建时，我得到了这个错误

  [copy] Copying 1 file to D:\tools\com.liferay.portal.plugins.sdk-1.0.11\portlets\firstLiferay-portlet\docroot\WEB-INF\classes
     [copy] Copied 3 empty directories to 2 empty directories under D:\tools\com.liferay.portal.plugins.sdk-1.0.11\portlets\firstLiferay-portlet\docroot\WEB-INF\classes
      [jar] Building MANIFEST-only jar: D:\tools\com.liferay.portal.plugins.sdk-1.0.11\portlets\firstLiferay-portlet\service-builder-classpath.jar
   [delete] Deleting: D:\tools\com.liferay.portal.plugins.sdk-1.0.11\portlets\firstLiferay-portlet\service-builder-classpath.jar.manifest
     [java] Java Result: 1
   [delete] Deleting: D:\tools\com.liferay.portal.plugins.sdk-1.0.11\portlets\firstLiferay-portlet\service-builder-classpath.jar
     [echo] java.lang.NoClassDefFoundError: com/thoughtworks/qdox/model/JavaMethod
     [echo]     at java.lang.Class.getDeclaredMethods0(Native Method)
     [echo]     at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
     [echo]     at java.lang.Class.privateGetMethodRecursive(Class.java:3048)
     [echo]     at java.lang.Class.getMethod0(Class.java:3018)
     [echo]     at java.lang.Class.getMethod(Class.java:1784)
     [echo]     at sun.launcher.LauncherHelper.validateMainClass(LauncherHelper.java:544)
     [echo]     at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:526)
     [echo] Caused by: java.lang.ClassNotFoundException: com.thoughtworks.qdox.model.JavaMethod
     [echo]     at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
     [echo]     at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
     [echo]     at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
     [echo]     at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
     [echo]     ... 7 more
     [echo] Error: A JNI error has occurred, please check your installation and try again
     [echo] Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=512m; support was removed in 8.0
     [echo] Exception in thread "main"

我检查和交叉验证，所有的jar都在jar库中。

下面是添加jar的截图：

​

Answer 1

特别是当你是新手的时候，我建议你再试一次，使用Liferay Workspace而不是(不推荐使用的) plugins-sdk。所有的示例(here's one for service builder)都构建在此基础上，而plugins-sdk应该主要用于将现有的遗留插件迁移到最新版本。

我不确定你的截图显示了什么--如果它是所有捆绑的罐子，那么它看起来很可怕。在OSGi捆绑包的时代，你应该只有很小的插件，而且看起来这些依赖确实太多了。