blocks|key|1557239|text|applet+viewer支持调试选项。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1557240|entityMap|0|LINK|mutability|MUTABLE|url|http://java.sun.com/j2se/1.3/docs/tooldocs/win32/appletviewer.html^0|0|D|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

The <a href="http://java.sun.com/j2se/1.3/docs/tooldocs/win32/appletviewer.html" rel="nofollow noreferrer">applet viewer</a> supports debug options.

blocks|key|1341775|text|来自未捕获异常的堆栈跟踪将出现在控制台中。这可以从Java控制面板(高级>+Java控制台>显示控制台)中启用，或者某些浏览器有各种选项或插件来启用它。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1341776|可以将调试器附加到正在运行的PlugIn进程。|1341777|也许最好的方法是根本不调试。编写测试。编写不会与不必要的假设相耦合的代码-例如，您将作为applet运行。不幸的是，大多数GUI/applet示例代码都写得非常糟糕。|1341778|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

Stack traces from uncaught exceptions will appear to the console. This can be enabled from the Java Control Panel (Advanced > Java console > Show console) or some browsers have various options or plugins for enabling it.

You can attach a debugger to the running PlugIn process.

Perhaps the best way is not to debug at all. Write tests. Write code that doesn't couple to unnecessary assumptions - for instance that you are running as an applet. Unfortunately most GUI/applet example code is written very badly.

blocks|key|1341811|text|未捕获的异常被发送到控制台。您也可以使用System.out将您自己的消息写入控制台。要查看结果，您需要通过右键单击systray中的Java图标并打开控制台来打开控制台(请注意，这对于Microsoft的VM是不同的)。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1341812|要正确调试applet，可以将Eclipse设置为调试applet。右键单击Applet源文件，然后单击Debug+as+applet。(如果您有applet的参数，则需要对其进行设置。)然后，您可以像调试任何其他Java代码一样单步执行applet代码。|1341813|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

Uncaught exceptions are sent to the console. You can also use System.out to write your own messages to the console. To view the results you'll need to open the console by right clicking the Java icon in the systray and opening the console (note this is different for Microsoft's VM).

To debug applets properly, you can setup Eclipse to debug applets. Right click the applet source file and click Debug as Applet. (If you have parameters for the applet you'll need to set this up.) Then you can step through the applet code as you would debug any other Java code.

blocks|key|1341882|text|我在做远程applet调试时遇到了问题，每次尝试从eclipse连接时，它的抛出连接拒绝错误，我的jre版本是64位，eclipse是32位，当我用32位的jre替换时，它对我来说是有效的。另外，如果我们已经安装了32位和64位jre版本，IE默认使用64位jre作为applet，chrome和FF可以使用32位jre版本。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1341883|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I faced issue doing remote applet debugging, every time while trying to connect from eclipse, its throws Connection refused error, my jre version was 64 bit and eclipse 32-bit, when I did replace with 32-bit jre, it worked for me. Also if we have install both 32-bit &amp; 64-bit jre versions, IE by default uses 64-bit jre for applets, chrome and FF may use 32-bit jre versions.

blocks|key|1557412|text|对我来说，在eclipse中调试applet最重要的操作是在java控制面板(Tab+java)中设置要使用的正确的二进制文件，这些文件带有调试符号。只有jdk中包含的JRE才有这些符号。因此，要在java控制面板中调试applet，请在jdk文件夹下找到正确的jre后，按查看按钮，例如"C:\Programmi\Java\jdk1.7.0_03\jre"，并仅对此条目启用检查。对我来说，这是按照Sami+Koivu所说的做的干净的方法。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1557413|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

For me the most important action to get applet debugging in eclipse, is to set in java control panel(tab java) the right binaries to use, that have debug symbols.
Only JRE included in jdk have this symbols.
So to debug applet in java control panel, tab java, press view button, after find the correct jre under jdk folder, for me for example "C:\Programmi\Java\jdk1.7.0_03\jre", and put check enabled only for this entry.
This is for me the clean way to do what Sami Koivu say.

Currently, the only information I have is a one-line error message in the browser's status-bar.

Do you know how I could get a stack-trace for example ?

How do you debug Java Applets?

调试器

Eclipse

Java

目前，我得到的唯一信息是浏览器状态栏中的一行错误消息。例如，你知道我怎样才能得到堆栈跟踪吗？

问如何调试Java Applets？
EN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问如何调试Java Applets？EN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问如何调试Java Applets？
EN