java项目连接jdbc报错:com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server 原因:相关jar包版本太低 解决方法:下载最新版的mysql-connector-java即可
java.lang.NoSuchFieldError: VERSION_2_3_0 at org.apache.struts2.views.freemarker.FreemarkerManager.createConfiguration(FreemarkerManager.java:331) at org.apache.struts2.views.freemarker.FreemarkerManager.init(FreemarkerManager.java:282) at org.apache
1.split方法转化字符串为数组: String[] strPicArr = map.get("hw_pic").toString().split("*"); 报错: java.util.regex.PatternSyntaxException: Dangling meta character '*' near index 0 2.经调试跟踪发现字符串中带有“*”时,用“*”分隔字符串成数组是不正确的,正确的写法是: String[] strPicArr = ma
1. 报错 java.lang.NoClassDefFoundError: org/apache/hadoop/hbase/protobuf/generated/MasterProtos$MasterService$BlockingInterface at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:763) at java.secu
报错信息为: Caused by: java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.
报错原因 org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'flywayInitializer' defined in class path resource [org/springframework/boot/autoconfigure/flyway/FlywayAutoConfiguration$FlywayConfiguration.class]: Invocati