不能插入到MySQL

String registeritQuery= "INSERT INTO explorer.usr_itinerary(itinerary_desc, latd, longd, owner_id, creation_date, visited_date,it_grp_name" + "VALUES (?,?,?,?,?,?,?)"; 

    PreparedStatement pst = conn.prepareStatement(registeritQuery); 

    pst.setString(1,it_Desc); 
    pst.setBigDecimal(2,new BigDecimal(latd)); 
    pst.setBigDecimal(3,new BigDecimal(longd)); 
    pst.setInt(4,userid); 
    pst.setDate(5, new java.sql.Date(System.currentTimeMillis())); 
    pst.setDate(6,java.sql.Date.valueOf(visitdate)); 
    pst.setString(7,Integer.toString(n)); 
    cnt = pst.executeUpdate();

表列：不能插入到MySQL

id(auto_increment)- int 
    itinerary_desc - varchar 
    latd - decimal - (9,6) 
    longd- decimal - (9,6) 
    creation_date - date 
    visited_date - date 
    it_grp_name - varchar

我得到的所有值preparedStatement时前，但它并没有插入记录。

错误：

java.lang.NullPointerException 
    at explorer.MySQLDataStoreUtilities.insertItinerary(MySQLDataStoreUtilities.java:182) 
    at org.apache.jsp.insertItinerary_jsp._jspService(insertItinerary_jsp.java:122) 
    at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:728) 
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432) 
    at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390) 
    at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:728) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) 
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222) 
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) 
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171) 
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99) 
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:936) 
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) 
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407) 
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1004) 
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589) 
    at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1822) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) 
    at java.lang.Thread.run(Thread.java:745)

来源

2016-12-01 trin

您是否收到任何错误？ –

是autocommit是否为false？添加具有连接详细信息的代码 – developer

不，我没有收到任何错误。我能够使用mysql工作台手动添加我提供给preparedStatement的相同数据的记录。 – trin

您的查询应该是这样的：

String registeritQuery= "INSERT INTO explorer.usr_itinerary(itinerary_desc, latd, longd, owner_id, creation_date, visited_date,it_grp_name) VALUES (?,?,?,?,?,?,?)";

你错过了) and space 您的查询是这样it_grp_name"+"VALUES这意味着it_grp_nameVALUES

所以你应该更换它到这it_grp_name)"+" VALUES这意味着it_grp_name) VALUES

来源

2016-12-01 20:00:14

String registeritQuery =“INSERT INTO explorer.usr_itinera ry（itinerary_desc，latd，longd，owner_id，creation_date，visited_date，it_grp_name）“+”VALUES（？，？，？，？，？，？，？）“; 它不工作。我更新了这样的陈述。 – trin

你有没有得到任何错误@特林？ –

编号代码运行，但没有任何错误。 owner_id是另一个表的外键，这是否重要？我不确定。 – trin

不能插入到MySQL

回答

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