Eclipse - 如何修复错误“在项目中找不到persistence.xml 文件”JPA 问题
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Eclipse - How to fix error "No persistence.xml file found in project" JPA issue
提问by eddyparkinson
Error "No persistence.xml file found in project" in Eclipse.
Eclipse 中的错误“在项目中未找到 persistence.xml 文件”。
Aim: Create a new project GWT+App engine+Maven
目的：新建项目GWT+App引擎+Maven
Steps to create this:
创建这个的步骤：
- Google eclipse plugin: select "New Web Application Project".
- set the name etc.
- right-click on the project > Configure > Convert to Maven...
- Fix jdoconfig.xml file: xsi has the wrong value. see Validating jdoconfig with incorrect url
- Google eclipse 插件：选择“New Web Application Project”。
- 设置名称等。
- 右键单击项目 > 配置 > 转换为 Maven...
- 修复 jdoconfig.xml 文件：xsi 有错误的值。请参阅 使用不正确的 url 验证 jdoconfig
Then I get the above error.
然后我得到上述错误。
The file exists at scr/META-INF/persistence.xml and also war/WEB-INF/classes/META-INF/persistence.xml But is not being found.
该文件存在于 scr/META-INF/persistence.xml 和 war/WEB-INF/classes/META-INF/persistence.xml 但没有被找到。
Notes: I installed plugins m2e, m2e-wtp and google eclipse plugin
注意：我安装了插件 m2e、m2e-wtp 和 google eclipse 插件
回答by Gerard Downes
If you are using eclipse. Try right clicking the Project File -> Build Path -> Configure Build Path
如果您使用的是日食。尝试右键单击项目文件 -> 构建路径 -> 配置构建路径
Step 1: Add the folder META-INF to the build path
步骤 1：将文件夹 META-INF 添加到构建路径
Step 2: Right click the Project File -> Maven -> Update Project
第二步：右键Project File -> Maven -> Update Project
