Struts中编译actoin的问题

Question

把你的一些主要步骤和相关代码parse出来看看吧。

Answer 1

CLASSPATH中有STRUTS需要的各个包么？
楼主不舍得把代码给人看，，，，即使你拿出来人家还不一定愿意看。

Answer 2

javac -classpath x:\xxx.jar;y:\xxxxx.jar; filename.java

Answer 3

classpath一定要设好！struts运行的库都要有：struts.jar,common-logging,等。都要在classpath里

Answer 4

我把struts.jar加到了classpath后还有以下这些错误，还有就是common-logging是什么?C:\>javac LogonAction.java
LogonAction.java:66: package javax.servlet does not exist
import javax.servlet.ServletException;
                     ^
LogonAction.java:67: package javax.servlet.http does not exist
import javax.servlet.http.HttpServletRequest;
                          ^
LogonAction.java:68: package javax.servlet.http does not exist
import javax.servlet.http.HttpSession;
                          ^
LogonAction.java:69: package javax.servlet.http does not exist
import javax.servlet.http.HttpServletResponse;
                          ^
LogonAction.java:98: cannot resolve symbol
symbol  : class UserDirectoryException
location: class app.LogonAction
        String password) throws UserDirectoryException {
                                ^
LogonAction.java:121: cannot resolve symbol
symbol  : class HttpServletRequest
location: class app.LogonAction
            HttpServletRequest request,
            ^
LogonAction.java:122: cannot resolve symbol
symbol  : class HttpServletResponse
location: class app.LogonAction
            HttpServletResponse response)
            ^
LogonAction.java:123: cannot resolve symbol
symbol  : class ServletException
location: class app.LogonAction
        throws IOException, ServletException {
                            ^
LogonAction.java:126: cannot resolve symbol
symbol  : class LogonForm
location: class app.LogonAction
        String username = ((LogonForm) form).getUsername();
                            ^
LogonAction.java:127: cannot resolve symbol
symbol  : class LogonForm
location: class app.LogonAction
        String password = ((LogonForm) form).getPassword();
                            ^
LogonAction.java:136: cannot resolve symbol
symbol  : class UserDirectoryException
location: class app.LogonAction
        catch (UserDirectoryException ude) {
               ^
LogonAction.java:158: cannot resolve symbol
symbol  : class HttpSession
location: class app.LogonAction
        HttpSession session = request.getSession();
        ^
LogonAction.java:159: cannot resolve symbol
symbol  : variable Constants
location: class app.LogonAction
        session.setAttribute(Constants.USER_KEY, form);
                             ^
LogonAction.java:162: cannot access javax.servlet.http.HttpServlet
file javax\servlet\http\HttpServlet.class not found
        if (servlet.getDebug() >= Constants.DEBUG) {
                   ^
LogonAction.java:162: cannot resolve symbol
symbol  : variable Constants
location: class app.LogonAction
        if (servlet.getDebug() >= Constants.DEBUG) {
                                  ^
LogonAction.java:168: log(java.lang.String,int) in org.apache.struts.action.Acti
onServlet cannot be applied to (java.lang.String)
            servlet.log(message.toString());
                   ^
LogonAction.java:172: cannot resolve symbol
symbol  : variable Constants
location: class app.LogonAction
        return (mapping.findForward(Constants.SUCCESS));
                                    ^
17 errorsC:\>

Answer 5

没有找到servlet这个包，classpath设的还是不完全，重新设置一下。

Answer 6

Classpath=.;C:\j2sdk1.4.2_02\lib\tools.jar;C:\j2sdk1.4.2_02\lib\dt.jar;C:\j2sdk1.4.2_02\jre\rt.jar;C:\resin-3.0.4\webapps\logon\WEB-INF\lib\struts_1_0_2.jarPath=%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;C:\j2sdk1.4.2_02\bin;C:\KAV5;C:\resin-3.0.4\webapps\logon\WEB-INF\classes\appXP的系统，C:\resin-3.0.4\webapps\logon\ 是这个应用的目录

Answer 7

在你的lib 里
加入一个servelet.jar就可以了

Answer 8

LogonAction.java:66: package javax.servlet does not exist
import javax.servlet.ServletException;
                     ^
LogonAction.java:67: package javax.servlet.http does not exist
import javax.servlet.http.HttpServletRequest;
                          ^
LogonAction.java:68: package javax.servlet.http does not exist
import javax.servlet.http.HttpSession;
                          ^
LogonAction.java:69: package javax.servlet.http does not exist
import javax.servlet.http.HttpServletResponse;
                          ^
-----------------------------------------------------
这不是明显的没有把servlet.jar文件的路径放在classpath中吗？

Answer 9

我下载了servelet.jar，还有7个错误C:\>javac LogonAction.java                          ^
LogonAction.java:98: cannot resolve symbol
symbol  : class UserDirectoryException
location: class app.LogonAction
        String password) throws UserDirectoryException {
                                ^
LogonAction.java:126: cannot resolve symbol
symbol  : class LogonForm
location: class app.LogonAction
        String username = ((LogonForm) form).getUsername();
                            ^
LogonAction.java:127: cannot resolve symbol
symbol  : class LogonForm
location: class app.LogonAction
        String password = ((LogonForm) form).getPassword();
                            ^
LogonAction.java:136: cannot resolve symbol
symbol  : class UserDirectoryException
location: class app.LogonAction
        catch (UserDirectoryException ude) {
               ^
LogonAction.java:159: cannot resolve symbol
symbol  : variable Constants
location: class app.LogonAction
        session.setAttribute(Constants.USER_KEY, form);
                             ^
LogonAction.java:162: cannot resolve symbol
symbol  : variable Constants
location: class app.LogonAction
        if (servlet.getDebug() >= Constants.DEBUG) {
                                  ^
LogonAction.java:172: cannot resolve symbol
symbol  : variable Constants
location: class app.LogonAction
        return (mapping.findForward(Constants.SUCCESS));
                                    ^
7 errors

Answer 10

我把C:\resin-3.0.4\webapps\logon\WEB-INF\classes\app\Constants.class放到了Classpath中了还是这样

Answer 11

如果你有全部的 源代码的话，可能是缺少jar文件；如果你是有部分，问题就大了。