1、"E.printStackTrace()"中E应小写
2、"String sql="Insert details (name, sex, class, dorm) Values(name, sex, class, dorm)";
smt.executeQuery(sql);"
改为"String sql="Insert into details (name, sex, class, dorm) Values(+"name+","+sex+","+class+","+dorm+")";
smt.executeUpdate(sql);"
2、"String sql="Insert details (name, sex, class, dorm) Values(name, sex, class, dorm)";
smt.executeQuery(sql);"
改为"String sql="Insert into details (name, sex, class, dorm) Values(+"name+","+sex+","+class+","+dorm+")";
smt.executeUpdate(sql);"
2、"String sql="Insert details (name, sex, class, dorm) Values(name, sex, class, dorm)";
smt.executeQuery(sql);"改为"String sql="Insert into details (name, sex, class, dorm) Values(+"'"name+"'","'"+sex+"'","'"+class+"'","'"+dorm+"'")";
smt.executeUpdate(sql);"
String class=request.getParameter("class");
这里出错,出错提示是这样的:
Generated servlet error:
E:\tomcat-4.0.1\work\localhost\examples\myjsp\dbtest$jsp.java:85: 表达式语句无效。
String class=request.getParameter("class");
^
An error occured between lines: 3 and 38 in the jsp file: /myjsp/dbtest.jspGenerated servlet error:
E:\tomcat-4.0.1\work\localhost\examples\myjsp\dbtest$jsp.java:85: 需要 ';'。
String class=request.getParameter("class");
^
An error occured between lines: 3 and 38 in the jsp file: /myjsp/dbtest.jspGenerated servlet error:
E:\tomcat-4.0.1\work\localhost\examples\myjsp\dbtest$jsp.java:85: 需要 '}'。
String class=request.getParameter("class");
^
An error occured between lines: 3 and 38 in the jsp file: /myjsp/dbtest.jspGenerated servlet error:
E:\tomcat-4.0.1\work\localhost\examples\myjsp\dbtest$jsp.java:85: 需要标识符。
String class=request.getParameter("class");
^
4 个错误