小程序嵌入标签返回 ClassNotFoundException [英] Applet embed tag is returning ClassNotFoundException
本文介绍了小程序嵌入标签返回 ClassNotFoundException的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我有一个小程序 jar 文件 cia.jar 和其中的类 main.class 并且我在包 com.gmail.connorbphtml 中有我的类.WebApp.我正在尝试将我的小程序嵌入到网页中.当我尝试这样做时，我收到一个找不到类的错误.
I have an applet jar file cia.jar and the class in it main.class and I have my class in the package com.gmail.connorbphtml.WebApp. I am trying to embed my applet into a webpage. When I am trying to do this I get a class not found error.
小程序在 Eclipse 中运行良好，但是当我尝试嵌入它时它不起作用.
The applet works fine in Eclipse but then when I try to embed it it does not work.
这是我使用嵌入的 HTML:
Here is my HTML using embed:
<embed code="main.class"
archive="cia.jar"
width="200" height="200"
type="application/x-java-applet;version=1.6.0"
pluginspage="http://java.sun.com/javase/downloads"/>
我几个月来一直有这个问题，这让我放弃了小程序，因为我无法让它工作.
I have been having this problem for months which made me give up applets because I can't get this working.
有人知道出了什么问题吗?
Does anyone know what went wrong?
jar -tvf cia.jar 的结果是:
39 Sun Sep 16 12:34:50 EDT 2012 META-INF/MANIFEST.MF
0 Sat Sep 15 18:02:30 EDT 2012 com/
0 Sat Sep 15 18:02:30 EDT 2012 com/gmail/
0 Sat Sep 15 18:02:30 EDT 2012 com/gmail/connorbphtml/
0 Sat Sep 15 18:02:30 EDT 2012 com/gmail/connorbphtml/WebApp/
136 Sat Sep 15 18:02:16 EDT 2012 com/gmail/connorbphtml/WebApp/package-info.class
692 Sat Sep 15 23:26:08 EDT 2012 com/gmail/connorbphtml/WebApp/main.class
226 Sat Sep 15 18:01:20 EDT 2012 .classpath
366 Sat Sep 15 18:01:20 EDT 2012 .project
控制台中的错误:
Java Plug-in 1.6.0_33
Using JRE version 1.6.0_33-b03-424-11M3720 Java HotSpot(TM) 64-Bit Server VM
User home directory = /Users/Connor
----------------------------------------------------
c: clear console window
f: finalize objects on finalization queue
g: garbage collect
h: display this help message
l: dump classloader list
m: print memory usage
o: trigger logging
q: hide console
r: reload policy configuration
s: dump system and deployment properties
t: dump thread list
v: dump thread stack
x: clear classloader cache
0-5: set trace level to <n>
----------------------------------------------------
Java Plug-in 1.6.0_33
Using JRE version 1.6.0_33-b03-424-11M3720 Java HotSpot(TM) 64-Bit Server VM
User home directory = /Users/Connorload: class Sun_Microsystems_Java_Security_Update_6.class not found.
java.lang.ClassNotFoundException: Sun_Microsystems_Java_Security_Update_6.class
at sun.plugin2.applet.Applet2ClassLoader.findClass(Applet2ClassLoader.java:252)
load: class com/gmail/connorbphtml/WebApp/main.class not found.
at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Plugin2ClassLoader.java:249)
load: class com/gmail/connorbphtml/WebApp/main.class not found.
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Plugin2ClassLoader.java:179)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Plugin2ClassLoader.java:160)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Plugin2ClassLoader.java:690)
at sun.plugin2.applet.Plugin2Manager.createApplet(Plugin2Manager.java:3045)
at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Plugin2Manager.java:1497)
at java.lang.Thread.run(Thread.java:680)
Exception: java.lang.ClassNotFoundException: Sun_Microsystems_Java_Security_Update_6.class
java.lang.ClassNotFoundException: com.gmail.connorbphtml.WebApp.main.class
at sun.plugin2.applet.Applet2ClassLoader.findClass(Applet2ClassLoader.java:252)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Plugin2ClassLoader.java:249)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Plugin2ClassLoader.java:179)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Plugin2ClassLoader.java:160)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Plugin2ClassLoader.java:690)
at sun.plugin2.applet.Plugin2Manager.createApplet(Plugin2Manager.java:3045)
at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Plugin2Manager.java:1497)
at java.lang.Thread.run(Thread.java:680)
Exception: java.lang.ClassNotFoundException: com.gmail.connorbphtml.WebApp.main.class
java.lang.ClassNotFoundException: com.gmail.connorbphtml.WebApp.main.class
at sun.plugin2.applet.Applet2ClassLoader.findClass(Applet2ClassLoader.java:252)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Plugin2ClassLoader.java:249)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Plugin2ClassLoader.java:179)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Plugin2ClassLoader.java:160)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Plugin2ClassLoader.java:690)
at sun.plugin2.applet.Plugin2Manager.createApplet(Plugin2Manager.java:3045)
at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Plugin2Manager.java:1497)
at java.lang.Thread.run(Thread.java:680)
Exception: java.lang.ClassNotFoundException: com.gmail.connorbphtml.WebApp.main.class
推荐答案
使用 deployJava.js 到 为小程序编写元素.
E.G.改编自页面:
<script src="http://www.java.com/js/deployJava.js"></script>
<script>
var attributes = {codebase:'.',
code:'com.gmail.connorbphtml.WebApp.main',
archive:'cia.jar',
width:200, height:200};
var version = '1.6';
deployJava.runApplet(attributes, parameters, version);
</script>
脚本将以正确的形式为运行它的浏览器/操作系统编写适当的元素.
The script will write the appropriate element in the correct form for the browser/OS on which it is running.
这篇关于小程序嵌入标签返回 ClassNotFoundException的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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