作者RichFU (小富哥~~~)
看板java
標題[問題] compile java檔時遇到錯誤-package does not exist
時間Sun Dec 21 23:37:05 2008
各位前輩好，小弟最近開始學習servlet
在做 Head First 第三章的範例時compile java檔遇到問題無法解決，
可以幫忙一下嗎？詳情如下
目錄架構為:
java檔
D:\Java\SCWCD\beerV1\src\com\sample\model\BeerExpert.java
package com.sample.model;
import java.util.*;
public class BeerExpert{
public List getBrands(String color){
List brands = new ArrayList();
if(color.equals("amber")){
brands.add("Jack Amber");
brands.add("Red Moose");
}else{
brands.add("Jail Pale Ale");
brands.add("Gout Stout");
}
return (brands);
}
}
D:\Java\SCWCD\beerV1\src\com\sample\web\BeerSelect.java
package com.sample.web;
import com.sample.model.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
public class BeerSelect extends HttpServlet{
public void doPost(HttpServletRequest request,HttpServletResponse response) throws IOException, ServletException{
response.setContentType("text/html;charset=big5");
PrintWriter out = response.getWriter();
out.println("Beer suggest list<br>");
String c = request.getParameter("color");
BeerExpert be = new BeerExpert();
List result = be.getBrands(c);
Iterator it = result.iterator();
while(it.hasNext()){
out.print("<br>try it: " + it.next() );
}
}
}
compile步驟如下：
(1)於D:\Java\SCWCD\beerV1目錄下compile BeerExpert.java 成功compile
且class檔位於：
D:\Java\SCWCD\beerV1\classes\com\sample\model\BeerExpert.class
(2)再於D:\Java\SCWCD\beerV1目錄下compile BeerExpert.java compile卻失敗…
以下是錯誤訊息
D:\Java\SCWCD\beerV1>javac -d classes src/com/sample/web/BeerSelect.java
src/com/sample/web/BeerSelect.java:3: package com.sample.model does not exist
import com.sample.model.*;
^
src/com/sample/web/BeerSelect.java:17: cannot find symbol
symbol : class BeerExpert
location: class com.sample.web.BeerSelect
BeerExpert be = new BeerExpert();
^
src/com/sample/web/BeerSelect.java:17: cannot find symbol
symbol : class BeerExpert
location: class com.sample.web.BeerSelect
BeerExpert be = new BeerExpert();
^
3 errors
請問這是哪邊錯了呢？一直找不出來……可以請前輩們幫忙解答一下嗎？謝謝！
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◆ From: 123.240.166.19
1F：推 H45:顯然是 classpath 之設定有誤... 12/21 23:47
2F：→ RichFU:請問該如何設定呢？我環境變數classpath設: 12/21 23:54
3F：→ RichFU:C:\Tomcat 5.5\common\lib\servlet-api.jar還有什麼須設呢? 12/21 23:57
4F：→ RichFU:似乎成功了耶！感謝H前輩 ^^ 12/21 23:59