Exception in thread "main" org.hibernate.InvalidMappingException: Unable to read XML

2014-5-6 17:12:37 org.hibernate.annotations.common.Version <clinit>

INFO: HCANN000001: Hibernate Commons Annotations {4.0.1.Final}

2014-5-6 17:12:37 org.hibernate.Version logVersion

INFO: HHH000412: Hibernate Core {4.1.4.Final}

2014-5-6 17:12:37 org.hibernate.cfg.Environment <clinit>

INFO: HHH000206: hibernate.properties not found

2014-5-6 17:12:37 org.hibernate.cfg.Environment buildBytecodeProvider

INFO: HHH000021: Bytecode provider name : javassist

2014-5-6 17:12:37 org.hibernate.cfg.Configuration configure

INFO: HHH000043: Configuring from resource: /hibernateTest/hibernate.cfg.xml

2014-5-6 17:12:37 org.hibernate.cfg.Configuration getConfigurationInputStream

INFO: HHH000040: Configuration resource: /hibernateTest/hibernate.cfg.xml

2014-5-6 17:12:37 org.hibernate.cfg.Configuration addResource

INFO: HHH000221: Reading mappings from resource: hibernateTest/Student2.hbm.xml

Exception in thread "main" org.hibernate.InvalidMappingException: Unable to read XML

at org.hibernate.internal.util.xml.MappingReader.readMappingDocument(MappingReader.java:109)

at org.hibernate.cfg.Configuration.add(Configuration.java:478)

at org.hibernate.cfg.Configuration.add(Configuration.java:474)

at org.hibernate.cfg.Configuration.add(Configuration.java:647)

at org.hibernate.cfg.Configuration.addResource(Configuration.java:730)

at org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:2109)

at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:2081)

at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:2061)

at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:2014)

at org.hibernate.cfg.Configuration.configure(Configuration.java:1929)

at hibernateTest.StudentOperate.<init>(StudentOperate.java:12)

at hibernateTest.Program.main(Program.java:15)

Caused by: org.dom4j.DocumentException: http://hibernate.org/dtd/hibernate-mapping-3.0.dtd%20 Nested exception: http://hibernate.org/dtd/hibernate-mapping-3.0.dtd%20
at org.dom4j.io.SAXReader.read(SAXReader.java:484)

at org.hibernate.internal.util.xml.MappingReader.readMappingDocument(MappingReader.java:78)

... 11 more

今天使用hibernate发现这个错误，仔细观察错误日志发现是引用的DTD地址后面多了一个空格