我用insert into 语句插入,并用select语句查询却发现这样的乱码:
[B@3e5a91
[B@1991de1
[B@a1d7b
[B@b113c7
[B@e391c4

源码是这样的:
Class.forName("org.gjt.mm.mysql.Driver").newInstance(); 
String url ="jdbc:mysql://localhost/first?user=root&password=123&useUnicode=true&characterEncoding=GB2312" ; 
Connection conn= DriverManager.getConnection(url); 
Statement stmt=conn.createStatement(); 
String query="insert into about(name) values('"+request.getParameter("content1").getBytes("iso-8859-1")+"')"; 
stmt.executeUpdate(query);
String query1="select * from about"; 
ResultSet rs1=stmt.executeQuery(query1); 
while(rs1.next()) 

String s=rs1.getString(1);//不知是不是这里的问题?out.print(s+"<br>"); 

解决方案 »

  1.   

    出现这样的错误提示:
    javax.servlet.ServletException: Incorrect string value: '\xB1\xBE\xD1\xF9\xCA\xBD...' for column 'name' at row 1
    at org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:498)
    at org.apache.jsp.submit_jsp._jspService(submit_jsp.java:77)
    at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:92)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:809)
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:162)
    at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:240)
    at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:187)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:809)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:200)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:146)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:209)
    at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
    at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
    at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:144)
    at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
    at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
    at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
    at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2358)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:133)
    at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
    at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:118)
    at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:116)
    at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
    at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
    at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:127)
    at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
    at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
    at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
    at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:152)
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
    at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
    at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
    at java.lang.Thread.run(Thread.java:534)