MyEclipse10启动Tomcat8出错

问题一：

java.lang.UnsupportedClassVersionError: org/apache/catalina/startup/Bootstrap : (Unsupported major.minor version 55.0)

原因是因为jdk版本太低了，tomcat8支持，更换更高级的jdk或者使用低版本的tomcat。

这里我将jdk换成jdk1.8：

但重启tomcat8后，有出现如下错误：

tomcat7Server [Remote Java Application]    
    org.apache.catalina.startup.Bootstrap at localhost:59723    
        Thread [main] (Suspended (exception UnsupportedClassVersionError))    
            Launcher$AppClassLoader(ClassLoader).defineTransformedClass(String, byte[], int, int, ProtectionDomain, ClassFormatError, String) line: 529    
            Launcher$AppClassLoader(ClassLoader).defineClass(String, byte[], int, int, ProtectionDomain) line: 623    
            Launcher$AppClassLoader(SecureClassLoader).defineClass(String, byte[], int, int, CodeSource) line: 124    
            Launcher$AppClassLoader(URLClassLoader).defineClass(String, Resource) line: 260    
            URLClassLoader.access$000(URLClassLoader, String, Resource) line: 56    
            URLClassLoader$1.run() line: 195    
            AccessController.doPrivileged(PrivilegedExceptionAction<T>, AccessControlContext) line: not available [native method]    
            Launcher$AppClassLoader(URLClassLoader).findClass(String) line: 188    
            Launcher$AppClassLoader(ClassLoader).loadClass(String, boolean) line: 307    
            Launcher$AppClassLoader.loadClass(String, boolean) line: 301    
            Launcher$AppClassLoader(ClassLoader).loadClass(String) line: 252    
            Launcher$AppClassLoader(ClassLoader).loadClassInternal(String) line: 320    
    d:MyEclipseCommoninarycom.sun.java.jdk.win32.x86_64_1.6.0.013injavaw.exe (2014-5-8 下午9:01:59)

原因是tomcat配置的jdk与myeclipse中的不一致。

现在将其换成jdk1.8即可。