運行簡單的Hibernate應用程序時出現HibernateException“無法解析配置：hibernate.cfg.xml”錯誤

Question

log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment).
log4j:WARN Please initialize the log4j system properly.
Exception in thread "main" org.hibernate.HibernateException: Could not parse configuration: hibernate.cfg.xml
    at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1491)
    at org.hibernate.cfg.Configuration.configure(Configuration.java:1425)
    at com.javatpoint.mypackage.StoreData.main(StoreData.java:13)
Caused by: org.dom4j.DocumentException: Connection refused: connect Nested exception: Connection refused: connect
    at org.dom4j.io.SAXReader.read(SAXReader.java:484)
    at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1481)
    ... 2 more

為什么會發生此HibernateException？

Answer 1

這很可能是由於所使用的Hibernate jar中不存在的hibernate.cfg.xml頂部引用了DTD引起的。

假設您沒有使用Hibernate 2.0版，請檢查hibernate.cfg.xml中是否位於頂部：

<!DOCTYPE hibernate-configuration PUBLIC
        "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
        "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">

並且如果您使用XML hbm文件進行實體映射，那么在這些XML文件中，您最需要注意的是：

<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">