String age,String good,String e_mail,String phone,String degree,String think,String show) throws SQLException{ stmt = conn.prepareStatement("update student_table set truename=?,sex=?,age=?,good=?,e_mail=?,phone=?,degree=?,think=?,show=? where id=?"); stmt.setString(1, truename); stmt.setString(2, sex); stmt.setString(3, age); stmt.setString(4, good); stmt.setString(5, e_mail); stmt.setString(6, phone); stmt.setString(7, degree); stmt.setString(8, think); stmt.setString(9, show); stmt.setString(10, id); stmt.execute(); } 7.删除代码 //删除企业 public void deletebusiness(String id) throws SQLException{ stmt = conn.prepareStatement("delete from business_table where id=?"); stmt.setString(1, id); stmt.execute(); } //查询企业名 public String querybusinessname(String id) throws SQLException{ String name=""; stmt = conn.prepareStatement("select name from business