程序报错请帮忙看看！：）

[sdsx]

我在jsp程序中用到了一个.jar文件，在classpath中已经设置好了
但执行程序时报错：
org.apache.jasper.JasperException: Unable to compile class for JSP

An error occurred at line: -1 in the jsp file: null

Generated servlet error:
[javac] Since fork is true, ignoring compiler setting.
[javac] Compiling 1 source file
[javac] Since fork is true, ignoring compiler setting.
[javac] D:\Tomcat 4\work\Standalone\localhost\view\tongji_people_jsp.java:91: cannot resolve symbol
[javac] symbol : class Pageable
[javac] location: class org.apache.jsp.tongji_people_jsp
[javac] Pageable rs=null;
[javac] ^
[javac] D:\Tomcat 4\work\Standalone\localhost\view\tongji_people_jsp.java:92: cannot resolve symbol
[javac] symbol : class PageableResultSet2
[javac] location: class org.apache.jsp.tongji_people_jsp
[javac] rs=new PageableResultSet2(pstmt.executeQuery());
[javac] ^
[javac] 2 errors

[Eraserpro]

把jar扔到Tomcat目录下的lib子文件夹下去再试试.

[sdsx]

我试了放到/lib下面还是不行
我解压了.jar文件，其中起作用的是两个.java文件我是不是应该先编译他们生成.class阿

[sdsx]

可是我不会编译生成.jar

[yingyeqi]

编译jar的方法如下：

把所有的内容拷贝到一个文件夹下，比如是1234
然后在1234下面
jar cvf xxx.jar *
就可以生成一个xxx.jar了
收工

[sdsx]

我生成.class的时候会报错：
D:\Tomcat 4\common\lib\Pageable.jar(com/beaconsystem/util/db/Pageable.java):8: c
lass Pageable is public, should be declared in a file named Pageable.java
(source unavailable)
PageableResultSet2.java:9: com.beaconsystem.util.db.PageableResultSet2 should be
declared abstract; it does not define getURL(int) in com.beaconsystem.util.db.P
ageableResultSet2
public class PageableResultSet2 implements Pageable {
^
Note: PageableResultSet2.java uses or overrides a deprecated API.
Note: Recompile with -deprecation for details.
2 errors