java.sql.SQLException: 几何字节串必须是小端

Question

我想使用 contains 函数获取所有 title 或 question 包含特定值的值。但是，我收到此错误：

java.sql.SQLException: Geometry byte string must be little endian. at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1074) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4120) at com.mysql.jdbc.MysqlIO.nextRowFast(MysqlIO.java:2076) at com.mysql.jdbc.MysqlIO.nextRow(MysqlIO.java:1932) at com.mysql.jdbc.MysqlIO.readSingleRowSet(MysqlIO.java:3426) at com.mysql.jdbc.MysqlIO.getResultSet(MysqlIO.java:488) at com.mysql.jdbc.MysqlIO.readResultsForQueryOrUpdate(MysqlIO.java:3131) at com.mysql.jdbc.MysqlIO.readAllResults(MysqlIO.java:2299) at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2722) at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2794) at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2155) at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:2322) at SQL.Select.getRecentQuestions(Select.java:447) at org.apache.jsp.Questions_jsp._jspService(Questions_jsp.java:198) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:111) at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:411) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:473) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:377) at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1682) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:318) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160) at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:734) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:673) at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:174) at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:416) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:283) at com.sun.enterprise.v3.services.impl.ContainerMapper$HttpHandlerCallable.call(ContainerMapper.java:459) at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:167) at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:206) at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:180) at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:235) at org.glassfish.grizzly.filterchain.ExecutorResolver.execute(ExecutorResolver.java:119) at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:283) at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:200) at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:132) at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:111) at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77) at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:536) at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:112) at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:117) at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access0(WorkerThreadIOStrategy.java:56) at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:137) at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:591) at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:571) at java.lang.Thread.run(Thread.java:748)

这是代码：

public String getRecentQuestions(String search) throws SQLException {
        PreparedStatement ps=con.prepareStatement("select title, question_id from questions where contains(title, ?) or contains(question, ?) limit 20");
        ps.setString(1, search);
        ps.setString(2, search);
        ResultSet rs=ps.executeQuery();
        StringBuilder sb=new StringBuilder("");
        while (rs.next()) {
            sb.append("<a href='Question.jsp?question=").append(rs.getInt(2)).append("'><h2>");
            sb.append(rs.getString(1));
            sb.append("</h2></a>");
        }
        return sb.toString();
    }

我的PreparedStatement有效，title列的数据类型是varchar，question列的数据类型也是varchar。提前致谢。

Answer 1

mysql 使用 instr(str, substr) 而不是 contains

也许你可以尝试 instr 或 like

Answer 2

Shawn Xu 说的对。您可以使用“INSTR(str, substr)”对文本进行模糊查询。例如：其中 INSTR(内容，“测试”) > 0， “INSTR”比“喜欢”更有效

java.sql.SQLException: 几何字节串必须是小端

java.sql.SQLException: Geometry byte string must be little endian

java

mysql

sql

sqlexception

prepared-statement