我正在尝试从here编译一些已编辑的源代码，但是我一直在收到有关名为“javax.persistence”的包的许多错误。
这是我的IDE版本 -
IntelliJ IDEA 2016.2.4
Build #IC-162.2032.8, built on September 9, 2016
JRE: 1.8.0_112-release-b343 x86
JVM: OpenJDK Server VM by JetBrains s.r.o
我的JDK似乎不包含这个包，因为我已经在SDK选项卡中链接了整个JDK。有谁知道我做错了什么？这是我的消息窗口的输出 -
Information:Using javac 1.8.0_101 to compile java sources
Information:java: Errors occurred while compiling module 'BctalkBumpBot-1.0'
Information:2/10/2016 9:10 PM - Compilation completed with 37 errors and 3 warnings in 3s 3ms
Warning:java: source value 1.5 is obsolete and will be removed in a future release
Warning:java: target value 1.5 is obsolete and will be removed in a future release
Warning:java: To suppress warnings about obsolete options, use -Xlint:-options.
C:\Users\gabri\Desktop\BctalkBumpBot-1.0\src\com\achow101\bumpbot\BumpEntry.java
Error:(21, 1) java: package javax.persistence does not exist
Error:(26, 2) java: cannot find symbol
symbol: class Entity
Error:(29, 6) java: cannot find symbol
symbol: class Id
location: class com.achow101.bumpbot.BumpEntry
C:\Users\gabri\Desktop\BctalkBumpBot-1.0\src\com\achow101\bumpbot\DoBumps.java
Error:(26, 25) java: package javax.persistence does not exist
Error:(27, 25) java: package javax.persistence does not exist
Error:(28, 25) java: package javax.persistence does not exist
Error:(29, 25) java: package javax.persistence does not exist
Error:(30, 34) java: package javax.persistence.criteria does not exist
Error:(31, 34) java: package javax.persistence.criteria does not exist
Error:(32, 34) java: package javax.persistence.criteria does not exist
Error:(48, 9) java: cannot find symbol
symbol: class EntityManagerFactory
location: class com.achow101.bumpbot.DoBumps
Error:(48, 36) java: cannot find symbol
symbol: variable Persistence
location: class com.achow101.bumpbot.DoBumps
Error:(49, 9) java: cannot find symbol
symbol: class EntityManager
location: class com.achow101.bumpbot.DoBumps
Error:(50, 9) java: cannot find symbol
symbol: class CriteriaBuilder
location: class com.achow101.bumpbot.DoBumps
Error:(56, 17) java: cannot find symbol
symbol: class CriteriaQuery
location: class com.achow101.bumpbot.DoBumps
Error:(57, 17) java: cannot find symbol
symbol: class Root
location: class com.achow101.bumpbot.DoBumps
Error:(59, 17) java: cannot find symbol
symbol: class TypedQuery
location: class com.achow101.bumpbot.DoBumps
C:\Users\gabri\Desktop\BctalkBumpBot-1.0\src\com\achow101\bumpbot\BumpBot.java
Error:(40, 25) java: package javax.persistence does not exist
Error:(41, 25) java: package javax.persistence does not exist
Error:(42, 25) java: package javax.persistence does not exist
Error:(43, 25) java: package javax.persistence does not exist
Error:(44, 34) java: package javax.persistence.criteria does not exist
Error:(45, 34) java: package javax.persistence.criteria does not exist
Error:(46, 34) java: package javax.persistence.criteria does not exist
Error:(113, 9) java: cannot find symbol
symbol: class EntityManagerFactory
location: class com.achow101.bumpbot.BumpBot
Error:(113, 36) java: cannot find symbol
symbol: variable Persistence
location: class com.achow101.bumpbot.BumpBot
Error:(114, 9) java: cannot find symbol
symbol: class EntityManager
location: class com.achow101.bumpbot.BumpBot
Error:(117, 9) java: cannot find symbol
symbol: class CriteriaBuilder
location: class com.achow101.bumpbot.BumpBot
Error:(118, 9) java: cannot find symbol
symbol: class CriteriaQuery
location: class com.achow101.bumpbot.BumpBot
Error:(119, 9) java: cannot find symbol
symbol: class Root
location: class com.achow101.bumpbot.BumpBot
Error:(121, 9) java: cannot find symbol
symbol: class TypedQuery
location: class com.achow101.bumpbot.BumpBot
Error:(165, 17) java: cannot find symbol
symbol: class EntityManagerFactory
Error:(165, 44) java: cannot find symbol
symbol: variable Persistence
Error:(166, 17) java: cannot find symbol
symbol: class EntityManager
Error:(287, 17) java: cannot find symbol
symbol: class EntityManagerFactory
Error:(287, 44) java: cannot find symbol
symbol: variable Persistence
Error:(288, 17) java: cannot find symbol
symbol: class EntityManager
感谢任何帮助。
答案 0 :(得分：3)
学习阅读错误消息。您正在尝试编译需要javax.persistence类的东西。这些不包括在标准库中（它们在某些时候，但多年来一直存在） 此外，您确实没有安装实际的JDK，而是安装了JRE。 IntelliJ显然并不介意这一点，这让我感到惊讶。似乎它使用的是内部编译器 从某个地方安装JDK，获取JEE或至少一个JPA实现（Hibernate或Eclipselink都很好），然后就可以了。