Question

嘿家伙我有这个错误信息，我在服务器和客户端之间连接，从mysql服务器中选择数据并将其插入mysql客户端但插入语句不会发生

com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException：您的SQL语法中有错误;查看与您的MySQL服务器版本相对应的手册，以获得正确的语法，以便在＆＃39;＆＃39; context＆＃39; .login VALUES（1，＆＃39; Alamal＆＃39;，＆＃39; alamal＆＃）附近使用39;，＆＃39; alamal＆＃39;＆＃39; alamal）＆＃39;在第1行

这是代码..

<%
try{
Connection con1;
Connection con2;
Class.forName("com.mysql.jdbc.Driver");
con1=(Connection)DriverManager.getConnection("jdbc:mysql://192.168.101.1:3306/context","hospital","0000");
PreparedStatement ps1=(PreparedStatement)con1.prepareStatement("SELECT * from hospital");
String str;
ResultSet rs1=ps1.executeQuery();

while(rs1.next()){
con2=(Connection)DriverManager.getConnection("jdbc:mysql://localhost:3306/context","root","");
con2.setAutoCommit(true);
con2.createStatement();
    int id=rs1.getInt("ID");
    String username=rs1.getString("UserName");
String password=rs1.getString("Password");
String hname=rs1.getString("HospitalName");
    String haddress=rs1.getString("HospitalAddress");
    PreparedStatement state= (PreparedStatement)con2.prepareStatement("INSERT INTO 'context'.'login' VALUES(?,?,?,?,?);");
    state.setInt(1, id);
    state.setString(2, username);
    state.setString(3, password);
    state.setString(4, hname);
    state.setString(5, haddress);
    state.executeUpdate();
    con2.close();      
    }
   con1.close();

} catch(Exception ex){
    out.print(ex);
}
%>

Answer 1

你在编写SQL查询时遇到了愚蠢的错误，现在它可以正常工作。

<%
try{
Connection con1;
Connection con2;
Class.forName("com.mysql.jdbc.Driver");
con1=(Connection)DriverManager.getConnection("jdbc:mysql://192.168.101.1:3306/context","hospital","0000");
PreparedStatement ps1=(PreparedStatement)con1.prepareStatement("SELECT * from hospital");
String str;
ResultSet rs1=ps1.executeQuery();

while(rs1.next()){
con2=(Connection)DriverManager.getConnection("jdbc:mysql://localhost:3306/context","root","");
con2.setAutoCommit(true);
con2.createStatement();
    int id=rs1.getInt("ID");
    String username=rs1.getString("UserName");
String password=rs1.getString("Password");
String hname=rs1.getString("HospitalName");
    String haddress=rs1.getString("HospitalAddress");
    PreparedStatement state= (PreparedStatement)con2.prepareStatement("INSERT INTO `context`.`login` VALUES(?,?,?,?,?);");
    state.setInt(1, id);
    state.setString(2, username);
    state.setString(3, password);
    state.setString(4, hname);
    state.setString(5, haddress);
    state.executeUpdate();
    con2.close();      
    }
   con1.close();

} catch(Exception ex){
    out.print(ex);
}
%>

Answer 2

SQL中的引号（std::list<item*> items）用于表示字符串文字，而不是对象名称。放下它们就可以了：

std::list

com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException：您的SQL语法中有错误;

2 个答案: