mysql - 无法将数据插入数据库

Question

事情就是这样

ps = conn.prepareStatement("INSERT INTO goods_country(goodsId,goodsCountry) VALUES (?,?)");
ps.setInt(1, this.returnId());
ps.setString(2, goodsCountry);
int exe = ps.executeUpdate();

我确信 this.returnId() 和 goodsCountry 有值(value)， 当运行此代码时出现此错误

java.sql.SQLException: Parameter index out of range (1 > number of parameters, which is 0). at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:963) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:896) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:885) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:860) at com.mysql.jdbc.PreparedStatement.checkBounds(PreparedStatement.java:3321) at com.mysql.jdbc.PreparedStatement.setInternal(PreparedStatement.java:3306) at com.mysql.jdbc.PreparedStatement.setInternal(PreparedStatement.java:3345) at com.mysql.jdbc.PreparedStatement.setInt(PreparedStatement.java:3296) at com.backend.model.MoviesBeanBO.inserCountry(MoviesBeanBO.java:67) at com.backend.controller.MovieOnBoard.doPost(MovieOnBoard.java:71) at javax.servlet.http.HttpServlet.service(HttpServlet.java:646) at javax.servlet.http.HttpServlet.service(HttpServlet.java:727) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:25)

不明白发生了什么， 如果有人可以提供帮助，我将非常感激。谢谢!

Answer 1

尝试删除值和问号之间的空格

    ps = conn.prepareStatement("INSERT INTO goods_country(goodsId,goodsCountry) VALUES(?,?)");
    ps.setInt(1, this.returnId());
    ps.setString(2, goodsCountry);
    int exe = ps.executeUpdate();

或者需要检查驱动jar文件。