java - HTTP 状态 500 - javax.servlet.ServletException : com. mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException:未知数据库 '/test'

Question

当我运行 jsp 文件时出现这种错误。我已使用 MySQL 连接器进行连接。

HTTP Status 500 - javax.servlet.ServletException:

com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown database '/test' type Exception report

message javax.servlet.ServletException: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown database '/test'

description The server encountered an internal error that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException: javax.servlet.ServletException: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown database '/test' org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:555) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:461) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340) javax.servlet.http.HttpServlet.service(HttpServlet.java:729) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) root cause

javax.servlet.ServletException: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown database '/test' org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:908) org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:837) org.apache.jsp.reg1_jsp._jspService(reg1_jsp.java:126) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) javax.servlet.http.HttpServlet.service(HttpServlet.java:729) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:438) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340) javax.servlet.http.HttpServlet.service(HttpServlet.java:729) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) root cause

com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown database '/test' sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) java.lang.reflect.Constructor.newInstance(Unknown Source) com.mysql.jdbc.Util.handleNewInstance(Util.java:400) com.mysql.jdbc.Util.getInstance(Util.java:383) com.mysql.jdbc.SQLError.createSQLException(SQLError.java:980) com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3847) com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3783) com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:871) com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:4292) com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1259) com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2249) com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2280) com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2079) com.mysql.jdbc.ConnectionImpl.(ConnectionImpl.java:794) com.mysql.jdbc.JDBC4Connection.(JDBC4Connection.java:44) sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) java.lang.reflect.Constructor.newInstance(Unknown Source) com.mysql.jdbc.Util.handleNewInstance(Util.java:400) com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:399) com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:325) java.sql.DriverManager.getConnection(Unknown Source) java.sql.DriverManager.getConnection(Unknown Source) org.apache.jsp.reg1_jsp._jspService(reg1_jsp.java:107) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) javax.servlet.http.HttpServlet.service(HttpServlet.java:729) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:438) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340) javax.servlet.http.HttpServlet.service(HttpServlet.java:729) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) note The full stack trace of the root cause is available in the Apache Tomcat/8.0.23 logs.

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Apache Tomcat/8.0.23

Answer 1

检查您的 mysql 服务器是否存在数据库名称“test”。

如果没有创建然后测试。