Eclipse无法识别persistence.xml的内容

问题描述

我在eclipse中收到以下错误：

Im getting the following error in eclipse:

persistence.xml文件没有可识别的内容。

The persistence.xml file does not have recognized content.

我的persistence.xml文件在我的应用程序中运行良好，但eclipse不断给我这个错误。移动文件并使用m2eclipse更新我的项目配置后，我得到了这个。我没有更改文件本身。有人知道如何解决这个问题吗？

My persistence.xml file works great in my application but eclipse keeps giving me this error. I got this after moving the file and updating my project configuration with m2eclipse. I did not change the file itself. Anyone knows how to solve this?

persistence.xml：

persistence.xml:

<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
    <persistence-unit name="localDB" transaction-type="RESOURCE_LOCAL">

        <provider>org.apache.openjpa.persistence.PersistenceProviderImpl</provider>
        <class>package.Users</class>
        <properties>
            <!-- enable warnings for debugging -->
            <property name="openjpa.Log" value="DefaultLevel=TRACE, Runtime=INFO, Tool=INFO, SQL=TRACE"/>
            <!-- connection properties -->
            <property name="openjpa.ConnectionURL" value="jdbc:mysql://localhost/test"/>
            <property name="openjpa.ConnectionDriverName" value="com.mysql.jdbc.Driver"/>
            <property name="openjpa.ConnectionUserName" value="root"/>
            <property name="openjpa.ConnectionPassword" value=""/>

        </properties>
    </persistence-unit>
</persistence>

更新

看起来m2eclipse中的一个错误与jpa结合使用。

Looks like a bug in m2eclipse in combination with jpa.

暂时解决设置选项将其显示为警告而不是错误

Temporarily solved by setting the option to show it as a warning instead of an error

推荐答案

我通过以下方式解决了问题（我正在使用RAD v8.5.1）：

I fixed the problem the following way (I'm using RAD v8.5.1):

1. Windows - >首选项 - >验证


2. 向下滚动到JPA Validator并点击设置下的省略号。


3. 点击添加包含组...按钮。


4. 点击新的Include Group似乎突出了它。


5. 点击添加规则...按钮。


6. 弹出一个对话框菜单。单击文件夹或文件名单选按钮，然后单击下一步。


7. 单击浏览文件夹...并导航到您的src目录（在我的情况下，它是您工作区内的项目（我的项目是多模块应用程序中的.war）中的src / main / resources）。


8. 点击完成。


9. 点击确定。这将提示完整版本。


10. 错误将消失。

1. Windows --> Preferences --> Validation
2. Scroll down to "JPA Validator" and click on the Ellipses under Settings.
3. Click on the "Add Include Group..." button.
4. Click on the new Include Group that appeared to highlight it.
5. Click on the "Add Rule..." button.
6. A dialog menu pops up. Click the "Folder or file name" radio button and click on "Next".
7. Click on "Browse Folder..." and navigate to your src directory (in my case, it was "src/main/resources") within your project (my project was a .war in a multi module app) in your workspace.
8. Click on "Finish".
9. Click on "OK". This will prompt a full build.
10. The error will go away.

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