blocks|key|1746612|text|简短的回答是肯定的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1746613|您可以使用项目的属性附加源代码。|1746614|转至属性(用于项目)+->+Java生成路径->库|1746615|选择您想要附加source/javadoc的库，然后展开它，您将看到一个如下所示的列表：|1746616|Source+Attachment:+(none)
Javadoc+location:+(none)
Native+library+location:+(none)
Access+rules:+(No+restrictions)|code-block|syntax|javascript|1746617|选择Javadoc+location，然后单击右侧的Edit。从那里开始，它应该是相当直接的。|1746618|祝你好运:)|1746619|entityMap^0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|T|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|U|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|V|8|@]|9|@]|A|$]]|$1|H|3|I|5|J|7|W|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|X|8|@]|9|@]|A|$]]|$1|O|3|P|5|6|7|Y|8|@]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

Short answer would be yes.

You can attach source using the properties for a project.

Go to Properties (for the Project) -> Java Build Path -> Libraries

Select the Library you want to attach source/javadoc for and then expand it, you'll see a list like so:

<pre><code>Source Attachment: (none)
Javadoc location: (none)
Native library location: (none)
Access rules: (No restrictions)
</code></pre>

Select Javadoc location and then click Edit on the right hahnd side. It should be quite straight forward from there.

Good luck :)

blocks|key|1746675|text|将jar文件添加到类路径时，可以将源目录或zip或jar文件附加到该jar。在Java+Build+Path属性中的Libraries选项卡上，展开jar的条目，您将看到有一个用于源附件的条目。选择此项目，然后单击编辑按钮。这使您可以选择包含源的文件夹、jar或zip。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1746676|此外，如果您在jar中选择一个类或方法并对其执行CTRL%2BCLICK+(或按F3)，那么您将进入字节码视图，其中有一个附加源代码的选项。|1746677|执行这些操作将为您提供所有参数名称以及完整的javadoc。|1746678|如果你没有源码，但是有javadoc，你可以通过第一种方法附加javadoc。如果你没有下载它，它甚至可以引用一个外部URL。|1746679|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|L|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|M|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

When you add a jar file to a classpath you can attach a source directory or zip or jar file to that jar. In the Java Build Path properties, on the Libraries tab, expand the entry for the jar and you'll see there's an item for the source attachment. Select this item and then click the Edit button. This lets you select the folder, jar or zip that contains the source.

Additionally, if you select a class or a method in the jar and CTRL+CLICK on it (or press F3) then you'll go into the bytecode view which has an option to attach the source code.

Doing these things will give you all the parameter names as well as full javadoc.

If you don't have the source but do have the javadoc, you can attach the javadoc via the first method. It can even reference an external URL if you don't have it downloaded.

blocks|key|1746711|text|当使用自动化构建时，另一个让这变得更容易的想法是：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1746712|当您创建一个项目的jar时，还要创建一个源文件jar：|1746713|project.jar|1746714|project-src.jar|1746715|尝试执行以下操作，而不是进入build+path+options对话框，向每个jar添加一个源引用:通过该对话框添加一个源引用。编辑您的.classpath，并使用第一个jar条目作为模板，将源jar文件添加到其他每个jar中。|1746716|通过这种方式，您可以最大限度地使用Eclipse的导航辅助工具，同时仍然使用更独立的工具来构建项目。|1746717|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|P|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|Q|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|R|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|S|8|@]|9|@]|A|$]]|$1|L|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|M|$]]

Another thought for making that easier when using an automated build:

When you create a jar of one of your projects, also create a source files jar: 
project.jar 
project-src.jar

Instead of going into the build path options dialog to add a source reference to each jar, try the following: add one source reference through the dialog. Edit your .classpath and using the first jar entry as a template, add the source jar files to each of your other jars. 

This way you can use Eclipse's navigation aids to their fullest while still using something more standalone to build your projects.

blocks|key|1531773|text|我发现，有时候，你指向你认为是正确的目录，然后它仍然声明在附加的源码中找不到该文件。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1531774|这些时候，我意识到最后一个path元素是"src“。只需删除这个path元素(因此确实指向"org“或"com”文件夹所在的实际路径之上的一个级别)，它就能神奇地工作。|1531775|不知何故，Eclipse似乎暗示了这个"src“path元素(如果存在)，如果您随后将其包含在源路径中，Eclipse就会卡住。或者类似的东西。|1531776|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|$]]

I've found that sometimes, you point to the directory you'd assume was correct, and then it still states that it can't find the file in the attached source blah blah.

These times, I've realized that the last path element was "src". Just removing this path element (thus indeed pointing one level above the actual path where the "org" or "com" folder is located) magically makes it work.

Somehow, Eclipse seems to imply this "src" path element if present, and if you then have it included in the source path, Eclipse chokes. Or something like that.

blocks|key|1531822|text|另一种选择是右键单击(您的项目)->Referenced+Libraries->(您的jar)下的jar文件，然后单击属性。然后单击Java+Source+Attachment。然后在location+path中输入您的源jar文件的位置。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1531823|这只是附加您的源文件的另一种方法。|1531824|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|$]]

Another option is to right click on your jar file which would be under (Your Project)->Referenced Libraries->(your jar) and click on properties. Then click on Java Source Attachment. And then in location path put in the location for your source jar file.

This is just another approach to attaching your source file.

blocks|key|1531879|text|我本打算寻求一种替代方案，将源代码附加到跨多个项目使用的同一个JAR。最初，我认为唯一的选择是重新构建包含源代码的JAR，但是看看“用户库”特性，您不必构建包含源代码的JAR。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1531880|当您有多个项目(相关或不相关)引用相同的JAR时，这是另一种选择。为每个JAR创建一个“用户库”，并将源代码附加到它们。下一次你需要一个特定的JAR，而不是使用"Add+JARs...“或“添加外部JAR...”添加之前创建的“用户库”。|1531881|您只需为每个JAR附加一次源代码，并且可以在任意数量的项目中重用它。|1531882|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|$]]

I was going to ask for an alternative to attaching sources to the same JAR being used across multiple projects. Originally, I had thought that the only alternative is to re-build the JAR with the source included but looking at the "user library" feature, you don't have to build the JAR with the source.

This is an alternative when you have multiple projects (related or not) that reference the same JAR. Create an "user library" for each JAR and attach the source to them. Next time you need a specific JAR, instead of using "Add JARs..." or "Add External JARs..." you add the "user library" that you have previously created.

You would only have to attach the source ONCE per JAR and can re-use it for any number of projects.

blocks|key|1531920|text|这可能看起来有点夸张，但如果你使用maven和include+source，mvn+eclipse插件将生成所需的全部源代码配置，为你提供你所需要的所有内联文档。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1531921|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|$]]

It may seem like overkill, but if you use maven and include source, the mvn eclipse plugin will generate all the source configuration needed to give you all the in-line documentation you could ask for.

blocks|key|1746997|text|另一种方法是将文件夹添加到源查找路径：http://help.eclipse.org/helios/index.jsp?topic=%252Forg.eclipse.jdt.doc.user%252Freference%252Fviews%252Fdebug%252Fref-editsourcelookup.htm|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1746998|entityMap|0|LINK|mutability|MUTABLE|url|http://help.eclipse.org/helios/index.jsp?topic=%252Forg.eclipse.jdt.doc.user%252Freference%252Fviews%252Fdebug%252Fref-editsourcelookup.htm^0|J|3L|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]]]]

Another way is to add the folder to your source lookup path:
<a href="http://help.eclipse.org/helios/index.jsp?topic=%2Forg.eclipse.jdt.doc.user%2Freference%2Fviews%2Fdebug%2Fref-editsourcelookup.htm" rel="nofollow">http://help.eclipse.org/helios/index.jsp?topic=%2Forg.eclipse.jdt.doc.user%2Freference%2Fviews%2Fdebug%2Fref-editsourcelookup.htm</a>

blocks|key|1747046|text|是的，有一个简单的方法……转到...+http://sourceforge.net/projects/jdk7src/并下载压缩文件。然后把这个附在月食上。给出您在eclipse中下载zip文件的路径。然后我们可以浏览源代码。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1747047|entityMap|0|LINK|mutability|MUTABLE|url|http://sourceforge.net/projects/jdk7src/^0|J|14|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]]]]

yes there is a easy way... go to ... <a href="http://sourceforge.net/projects/jdk7src/" rel="noreferrer">http://sourceforge.net/projects/jdk7src/</a> and download the zip file. Then attach this to the eclipse. Give the path where you have downloaded the zip file in eclipse. We can then browse through the source.

blocks|key|1747192|text|直到昨天，我还在苦苦地下载大量jars的源码压缩，并为每个项目手动附加它们。然后一位同事让我上了The+Java+Source+Attacher。它做了eclipse应该做的事情--右键单击上下文菜单，上面写着"Attach+Java+Source“。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1747193|​|1747194|📷|atomic|1747195|1747196|它会自动为您下载源代码并附加它。我只访问了几个它不知道的库，当这种情况发生时，它会让你把url贡献给社区，这样其他人就不会有这个库的问题了。|1747197|entityMap|0|LINK|mutability|MUTABLE|url|http://marketplace.eclipse.org/content/java-source-attacher|1|IMAGE|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/e987c0320f14d7d84c2944ec575de302.png|imageAlt^0|1C|O|0|0|0|0|1|1|0|0|0^^$0|@$1|2|3|4|5|6|7|Z|8|@]|9|@$A|10|B|11|1|12]]|C|$]]|$1|D|3|E|5|6|7|13|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|14|8|@]|9|@$A|15|B|16|1|17]]|C|$]]|$1|I|3|E|5|6|7|18|8|@]|9|@]|C|$]]|$1|J|3|K|5|6|7|19|8|@]|9|@]|C|$]]|$1|L|3|-4|5|6|7|1A|8|@]|9|@]|C|$]]]|M|$N|$5|O|P|Q|C|$R|S]]|T|$5|U|P|V|C|$W|X|Y|-4]]]]

Up until yesterday I was stuck painstakingly downloading source zips for tons of jars and attaching them manually for every project. Then a colleague turned me on to <a href="http://marketplace.eclipse.org/content/java-source-attacher">The Java Source Attacher</a>. It does what eclipse should do - a right click context menu that says "Attach Java Source". 

<img src="https://i.stack.imgur.com/uA7P8.png" alt="enter image description here">

It automatically downloads the source for you and attaches it. I've only hit a couple libraries it doesn't know about and when that happens it lets you contribute the url back to the community so no one else will have a problem with that library.

blocks|key|1747272|text|如果您使用gradle构建您的库，您可以将源代码附加到您创建的jars中，然后eclipse将自动使用它们。请通过@MichaelOryl+How+to+build+sources+jar+with+gradle查看答案。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1747273|复制在这里供您参考：|1747274|jar+{
++++from+sourceSets.main.allSource
}|code-block|syntax|javascript|1747275|所显示的解决方案与gradle+java插件一起使用。如果您不使用该插件，则里程可能会有所不同。|1747276|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/11474729/how-to-build-sources-jar-with-gradle^0|1Y|10|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@$A|V|B|W|1|X]]|C|$]]|$1|D|3|E|5|6|7|Y|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|Z|8|@]|9|@]|C|$I|J]]|$1|K|3|L|5|6|7|10|8|@]|9|@]|C|$]]|$1|M|3|-4|5|6|7|11|8|@]|9|@]|C|$]]]|N|$O|$5|P|Q|R|C|$S|T]]]]

If you build your libraries with gradle, you can attach sources to the jars you create and then eclipse will automatically use them. See the answer by @MichaelOryl <a href="https://stackoverflow.com/questions/11474729/how-to-build-sources-jar-with-gradle">How to build sources jar with gradle</a>.

Copied here for your reference:

<pre><code>jar {
 from sourceSets.main.allSource
}
</code></pre>

The solution shown is for use with the gradle java plugin. Mileage may vary if you're not using that plugin.

blocks|key|1747388|text|对于那些正在编写Eclipse插件并希望包含源代码的人来说……在feature+ExportWizard中有一个包含源的选项：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1747389|📷|atomic|offset|length|1747390|​|1747391|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/b1f6b6c535ac162cbdd51b5af137c222.png|imageAlt^0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|S|8|@]|9|@$E|T|F|U|1|V]]|A|$]]|$1|G|3|H|5|6|7|W|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|X|8|@]|9|@]|A|$]]]|J|$K|$5|L|M|N|A|$O|P|Q|-4]]]]

For those who are writing Eclipse plugins and want to include the source...
in the feature ExportWizard there is an option for including the source:
<a href="https://i.stack.imgur.com/4QFF4.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/4QFF4.png" alt="enter image description here"></a>

blocks|key|1747609|text|1)按住Control%2B左键单击要查看的方法。然后，Eclipse将把您带到Source+Not+Found页面。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1747610|2)点击“附加源”|1747611|📷|atomic|offset|length|1747612|​|1747613|3)|1747614|1747615|1747616|4)导航到C:\Program+Files\Java\jdk-9.0.1\lib\src.zip|1747617|5)点击OK|1747618|1747619|现在您应该可以看到源代码了。|1747620|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/ee5bb1a095d55ff1dcbbd2f8a065e34d.png|imageAlt|1|https://ask.qcloudimg.com/http-save/yehe-900000/eae046d9307a477d4681eca602542191.png|2|https://ask.qcloudimg.com/http-save/yehe-900000/91041236b331ea32cecc55ba6a4aee14.png^0|0|0|0|1|0|0|0|0|0|1|1|0|0|0|0|0|1|2|0|0^^$0|@$1|2|3|4|5|6|7|18|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|19|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|1A|8|@]|9|@$G|1B|H|1C|1|1D]]|A|$]]|$1|I|3|J|5|6|7|1E|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|1F|8|@]|9|@]|A|$]]|$1|M|3|E|5|F|7|1G|8|@]|9|@$G|1H|H|1I|1|1J]]|A|$]]|$1|N|3|J|5|6|7|1K|8|@]|9|@]|A|$]]|$1|O|3|P|5|6|7|1L|8|@]|9|@]|A|$]]|$1|Q|3|R|5|6|7|1M|8|@]|9|@]|A|$]]|$1|S|3|E|5|F|7|1N|8|@]|9|@$G|1O|H|1P|1|1Q]]|A|$]]|$1|T|3|U|5|6|7|1R|8|@]|9|@]|A|$]]|$1|V|3|-4|5|6|7|1S|8|@]|9|@]|A|$]]]|W|$X|$5|Y|Z|10|A|$11|12|13|-4]]|14|$5|Y|Z|10|A|$11|15|13|-4]]|16|$5|Y|Z|10|A|$11|17|13|-4]]]]

1) Hold Control+ left click on the method you want to see. Then Eclipse will bring you to the Source Not Found page. 

2) Click on "Attach Source"
<a href="https://i.stack.imgur.com/MT3o1.png" rel="noreferrer"><img src="https://i.stack.imgur.com/MT3o1.png" alt="enter image description here"></a>

3) <a href="https://i.stack.imgur.com/SxAXz.png" rel="noreferrer"><img src="https://i.stack.imgur.com/SxAXz.png" alt="enter image description here"></a>

4) Navigate to C:\Program Files\Java\jdk-9.0.1\lib\src.zip

5) Click OK
<a href="https://i.stack.imgur.com/aoKuJ.png" rel="noreferrer"><img src="https://i.stack.imgur.com/aoKuJ.png" alt="enter image description here"></a>
Now you should see the source code.

blocks|key|1532707|text|只需点击attach+source并选择文件夹路径...名称将与文件夹名称相同(在我的示例中)。记住一件事，你需要选择路径到项目文件夹基位置，后缀为"\“ex+D:\MyProject\|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1532708|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|$]]

Just click on attach source and select folder path ... name will be same as folder name (in my case). Remember one thing you need to select path upto project folder base location with "\" at suffix ex D:\MyProject\

I'm a big fan of the way Visual Studio will give you the comment documentation / parameter names when completing code that you have written and ALSO code that you are referencing (various libraries/assemblies).

Is there an easy way to get inline javadoc/parameter names in Eclipse when doing code complete or hovering over methods? Via plugin? Via some setting? It's extremely annoying to use a lot of libraries (as happens often in Java) and then have to go to the website or local javadoc location to lookup information when you have it in the source jars right there!

Is there an easy way to attach source in Eclipse?

Visual Studio

Eclipse

Java

我非常喜欢Visual Studio在完成您编写的代码和引用的代码(各种库/程序集)时为您提供注释文档/参数名称的方式。在完成代码或将鼠标悬停在方法上时，有没有一种简单的方法可以在Eclipse中获得内联javadoc/参数名称？通过插件？通过某种设置？使用很多库(就像在Java中经常发生的那样)，然后不得不去网站或本...

问在Eclipse中有没有一种简单的附加源代码的方法？
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