我打成的包，执行时报错Exception in thread "main",

sobo

我做了一个项目目录如下
--BuildPage
-----lib（这里面是我程序里要使用的包）
-----mod（这里面是我程序里要使用的一些模板文件）
-----src
     ┠-com
         ┠-sobo
              ┠--BuildPage
                     ┠--BuildPageMain.java
                     ┠--Init.java
                     ┠--Transact.java

我用ant编译并且打包，成功打成buildpage.jar包
build.xml文档如下

<?xml version="1.0" encoding="UTF-8" ?>;
<!--start of file-->;
<project name="BuildPage" default="init" basedir=".">;
<target name="init">;

<property name="src.dir" value="./src">;</property>;
<property name="lib.dir" value="./lib">;</property>;
<property name="mod.dir" value="./mod">;</property>;

<property name="build.src" value="./build">;</property>;
<property name="build.lib" value="${build.src}/lib">;</property>;
<property name="build.mod" value="${build.src}/mod">;</property>;
<property name="build.class" value="${build.src}/classes">;</property>;
   
<path id="classpath">;
    <fileset dir="${lib.dir}">;
        <include name="**/*.jar"/>;
    </fileset>;
</path>;

<mkdir dir="${build.src}"/>;
<mkdir dir="${build.class}"/>;
<mkdir dir="${build.mod}"/>;
<mkdir dir="${build.lib}"/>;

<copy todir="${build.src}">;
   <fileset dir="${src.dir}">;</fileset>;
</copy>;

<copy todir="${build.lib}">;
   <fileset dir="${lib.dir}">;</fileset>;
</copy>;

<copy todir="${build.mod}">;
   <fileset dir="${mod.dir}">;</fileset>;
</copy>;

</target>;

<target name="build" depends="init">;
<javac srcdir="${build.src}"
       destdir="${build.class}">;
       <classpath refid="classpath">;</classpath>;
</javac>;
</target>;

<target name="jar" depends="build">;
<jar destfile="buildpage.jar"
     basedir="${build.src}">;
<manifest>;
     <attribute name="Built-By" value="Sobo"/>;
     <attribute name="Main-Class" value="BuildPageMain"/>;
</manifest>;     
</jar>;
</target>;
</project>;
<!-- End of file -->;

但我在控制台下想执行这个包文件时（java -jar buildpage.jar）

Exception in thread "main" java.lang.NoClassDefFoundError: BuildPageMain

wolfg

打包这个target是不是该这样呢

1. 
   
2. <target name="jar" depends="build">;
   
3. <jar destfile="buildpage.jar"
   
4. basedir="${build.class}">;
   
5. <manifest>;
   
6. <attribute name="Built-By" value="Sobo"/>;
   
7. <attribute name="Main-Class" value="BuildPageMain"/>;
   
8. </manifest>;
   
9. </jar>;
   
10. </target>;
    

复制代码

另外你的那几个Java类是不是放在了 package中,如果是,Main-Class的值要包含包名，像这样packagename/BuildPageMain

能否把Jar文件内部的结构贴出来，用jar -tvf buildpage.jar

sobo

F:\JavaRun\BuildPage>;jar -tvf buildpage.jar
     0 Sat Feb 21 23:46:50 CST 2004 META-INF/
   150 Sat Feb 21 23:46:48 CST 2004 META-INF/MANIFEST.MF
     0 Sat Feb 21 23:01:22 CST 2004 classes/
     0 Sat Feb 21 23:01:22 CST 2004 classes/com/
     0 Sat Feb 21 23:01:22 CST 2004 classes/com/sobo/
     0 Sat Feb 21 23:01:22 CST 2004 classes/com/sobo/test/
     0 Sat Feb 21 23:01:22 CST 2004 classes/com/sobo/test/BuildPage/
     0 Sat Feb 21 23:01:22 CST 2004 classes/com/sobo/BuildPage/
     0 Sat Feb 21 23:01:22 CST 2004 mod/
     0 Sat Feb 21 23:01:22 CST 2004 lib/
     0 Sat Feb 21 23:01:22 CST 2004 com/
     0 Sat Feb 21 23:01:22 CST 2004 com/sobo/
     0 Sat Feb 21 23:01:22 CST 2004 com/sobo/test/
     0 Sat Feb 21 23:01:22 CST 2004 com/sobo/test/BuildPage/
     0 Sat Feb 21 23:01:22 CST 2004 com/sobo/BuildPage/
   368 Sat Feb 21 23:01:22 CST 2004 classes/com/sobo/test/BuildPage/WriteNewPageTest.class
   721 Sat Feb 21 23:01:22 CST 2004 classes/com/sobo/test/BuildPage/InitTest.class
   528 Sat Feb 21 23:01:22 CST 2004 classes/com/sobo/test/BuildPage/TransactTest.class
  1118 Sat Feb 21 23:01:22 CST 2004 classes/com/sobo/test/BuildPage/ConnectionFactoryTest.class
  1105 Sat Feb 21 23:01:22 CST 2004 classes/com/sobo/test/BuildPage/ReadModelPageTest.class
  1580 Sat Feb 21 23:01:22 CST 2004 classes/com/sobo/test/BuildPage/XMLReaderTest.class
  1553 Sat Feb 21 23:01:22 CST 2004 classes/com/sobo/BuildPage/ConnectionFactory.class
   722 Sat Feb 21 23:01:22 CST 2004 classes/com/sobo/BuildPage/ReadModelPage.class
   745 Sat Feb 21 23:01:22 CST 2004 classes/com/sobo/BuildPage/XMLReader.class
  1135 Sat Feb 21 23:01:22 CST 2004 classes/com/sobo/BuildPage/BuildPageMain.class
  2406 Sat Feb 21 23:01:22 CST 2004 classes/com/sobo/BuildPage/Transact.class
  2275 Sat Feb 21 23:01:22 CST 2004 classes/com/sobo/BuildPage/Init.class
   598 Sat Feb 21 23:01:22 CST 2004 classes/com/sobo/BuildPage/WriteNewPage.class
   135 Sat Feb 21 23:01:22 CST 2004 mod/template.htm
    19 Sat Feb 21 23:01:22 CST 2004 mod/invalidfile.txt
   575 Sat Feb 21 23:01:22 CST 2004 mod/init.xml
     5 Sat Feb 21 23:01:22 CST 2004 mod/test.txt
  8704 Sat Feb 21 23:01:22 CST 2004 mod/Thumbs.db
     0 Sat Feb 21 23:01:22 CST 2004 mod/news.html
23563 Sat Feb 21 23:01:22 CST 2004 lib/saxpath.jar
135368 Sat Feb 21 23:01:22 CST 2004 lib/jdom.jar
121070 Sat Feb 21 23:01:22 CST 2004 lib/junit.jar
212695 Sat Feb 21 23:01:22 CST 2004 lib/jtds-0.6.jar
191881 Sat Feb 21 23:01:22 CST 2004 lib/jaxen-full.jar
   722 Sat Feb 21 23:01:22 CST 2004 com/sobo/test/BuildPage/WriteNewPageTest.java
  1035 Sat Feb 21 23:01:22 CST 2004 com/sobo/test/BuildPage/InitTest.java
   862 Sat Feb 21 23:01:22 CST 2004 com/sobo/test/BuildPage/TransactTest.java
  1443 Sat Feb 21 23:01:22 CST 2004 com/sobo/test/BuildPage/ConnectionFactoryTest.java
  1430 Sat Feb 21 23:01:22 CST 2004 com/sobo/test/BuildPage/ReadModelPageTest.java
  2170 Sat Feb 21 23:01:22 CST 2004 com/sobo/test/BuildPage/XMLReaderTest.java
  1745 Sat Feb 21 23:01:22 CST 2004 com/sobo/BuildPage/ConnectionFactory.java
  1262 Sat Feb 21 23:01:22 CST 2004 com/sobo/BuildPage/BuildPageMain.java
   941 Sat Feb 21 23:01:22 CST 2004 com/sobo/BuildPage/ReadModelPage.java
  2590 Sat Feb 21 23:01:22 CST 2004 com/sobo/BuildPage/Transact.java
  3194 Sat Feb 21 23:01:22 CST 2004 com/sobo/BuildPage/Init.java
   806 Sat Feb 21 23:01:22 CST 2004 com/sobo/BuildPage/WriteNewPage.java
  1351 Sat Feb 21 23:01:22 CST 2004 com/sobo/BuildPage/XMLReader.java

sobo

原帖由 "wolfg" 发表：
像这样packagename/BuildPageMain

我这几个类都是放在package里的，如：
com.sobo.BuildPage.BuildPageMain

那么在这个build.xml里应该怎么写呢？

wolfg

写成这样吧

1. 
   
2. 
   
3. <?xml version="1.0" encoding="UTF-8" ?>;
   
4. <!--start of file-->;
   
5. <project name="BuildPage" default="init" basedir=".">;
   
6. <target name="init">;
   
7. 
   
8. <property name="src.dir" value="./src">;</property>;
   
9. <property name="lib.dir" value="./lib">;</property>;
   
10. <property name="mod.dir" value="./mod">;</property>;
    
11. 
    
12. <property name="build.src" value="./build">;</property>;
    
13. <property name="build.lib" value="${build.src}/lib">;</property>;
    
14. <property name="build.mod" value="${build.src}/mod">;</property>;
    
15. <property name="build.class" value="${build.src}/classes">;</property>;
    
16. 
    
17. <path id="classpath">;
    
18. <fileset dir="${lib.dir}">;
    
19. <include name="**/*.jar"/>;
    
20. </fileset>;
    
21. </path>;
    
22. 
    
23. <mkdir dir="${build.src}"/>;
    
24. <mkdir dir="${build.class}"/>;
    
25. <mkdir dir="${build.mod}"/>;
    
26. <mkdir dir="${build.lib}"/>;
    
27. 
    
28. <copy todir="${build.src}">;
    
29. <fileset dir="${src.dir}">;</fileset>;
    
30. </copy>;
    
31. 
    
32. <copy todir="${build.lib}">;
    
33. <fileset dir="${lib.dir}">;</fileset>;
    
34. </copy>;
    
35. 
    
36. <copy todir="${build.mod}">;
    
37. <fileset dir="${mod.dir}">;</fileset>;
    
38. </copy>;
    
39. 
    
40. </target>;
    
41. 
    
42. <target name="build" depends="init">;
    
43. <javac srcdir="${build.src}"
    
44. destdir="${build.class}">;
    
45. <classpath refid="classpath">;</classpath>;
    
46. </javac>;
    
47. </target>;
    
48. 
    
49. <target name="jar" depends="build">;
    
50. <jar destfile="buildpage.jar"
    
51. basedir="${build.class}">;
    
52. <manifest>;
    
53. <attribute name="Built-By" value="Sobo"/>;
    
54. <attribute name="Main-Class" value="com.sobo.BuildPage.BuildPageMain"/>;
    
55. </manifest>;
    
56. </jar>;
    
57. </target>;
    
58. </project>;
    
59. <!-- End of file -->;
    
60. 
    

复制代码

注意这里<jar destfile="buildpage.jar"
basedir="${build.class}">;

sobo

谢谢，试了一下，这个问题解决了，不过又出现新的问题了：

F:\JavaRun\BuildPage>;java -jar buildpage.jar
java.lang.NoClassDefFoundError: org/jdom/JDOMException
        at com.sobo.BuildPage.BuildPageMain.run(Unknown Source)

sobo

我现在的这段是这样的：

1. 
   
2. <target name="build" depends="init">;
   
3. <javac srcdir="${build.src}"
   
4.        destdir="${build.class}">;
   
5. <classpath refid="classpath">;</classpath>;
   
6. </javac>;
   
7. </target>;
   
8. 
   
9. <target name="jar" depends="build">;
   
10.   <jar destfile="buildpage.jar"
    
11.        basedir="${build.class}">;
    
12.      <fileset dir="${build.lib}">;
    
13.           <include name="**/*.jar"/>;
    
14.      </fileset>;
    
15. <manifest>;
    
16. <attribute name="Built-By" value="Sobo"/>;
    
17. <attribute name="Main-Class" value="com.sobo.BuildPage.BuildPageMain"/>;
    
18. </manifest>;
    
19. </jar>;
    
20. </target>;
    

复制代码

sobo

wolfg君兄，还在吗？帮帮我啊！

sobo

ok,搞定了，在<manifest>;中间加了一段代码就可以：
<attribute name="Class-Path" value="${build.lib}/jdom.jar"/>;

感谢 wolfg君兄！！

wolfg

这两天上不了网
不必客气，你的回复也让我学到了很多东西