这个问题在这里已有答案：
我有在JDK 1.8上编译的代码 . 我创建了war文件并将其部署在运行JRE 1.8的Ubuntu服务器上的Tomcat8上 . 打开主页面时出现此错误：
java.lang.UnsupportedClassVersionError：com / dash / io / web / bind / HomeCtrl：不支持的major.minor版本52.0
$ java -versionjava version "1.8.0_45"
Java(TM) SE Runtime Environment (build 1.8.0_45-b14)
Java HotSpot(TM) 64-Bit Server VM (build 25.45-b02, mixed mode)
$ javac -version
javac 1.8.0_45
$ echo $JRE_HOME
/usr/local/java/jdk1.8.0_45/jre
$ /usr/local/apache-tomcat-8.0.22/bin/catalina.sh version
Using CATALINA_BASE: /usr/local/apache-tomcat-8.0.22
Using CATALINA_HOME: /usr/local/apache-tomcat-8.0.22
Using CATALINA_TMPDIR: /usr/local/apache-tomcat-8.0.22/temp
Using JRE_HOME: /usr/local/java/jdk1.8.0_45/jre
Using CLASSPATH: /usr/local/apache-tomcat-8.0.22/bin/bootstrap.jar:/usr/local/apache-tomcat-8.0.22/bin/tomcat-juli.jar
Server version: Apache Tomcat/8.0.22
Server built: Apr 29 2015 11:46:15 UTC
Server number: 8.0.22.0
OS Name: Linux
OS Version: 3.13.0-52-generic
Architecture: amd64
JVM Version: 1.8.0_45-b14
JVM Vendor: Oracle Corporation
需要帮忙 . 谢谢 .
1 回答
我猜你正在使用maven制作你的战争和maven-compiler-plugin . 你有没有在那里设置源和目标版本？默认配置可能不是您想要的 . http://maven.apache.org/plugins/maven-compiler-plugin/examples/set-compiler-source-and-target.html