eclipse无法在线install new software的解决办法

今天想装maven，不知道是公司的网络使用代理还是什么问题，各种尝试始终都是停留在pending阶段，进度永远是2%，就想有没有offline的安装包方法。

发现方法如下（就是手动下载包，然后安装的）：

http://www.jboss.org/tools/download/installation/update_3_3.html#fromzip

Alternatively, if you prefer to install from an offline update site zip, you candownload one and use that instead of a remote http URL as in the screenshot above.

a) Download an Update Site Zip, but DO NOT UNZIP IT.

b) As in step 5 above, when Eclipse starts, go to Help > Install New Software... > Add... However, in this case you should press theArchive... button and browse for the update site zip you downloaded.

8. Select features to install, then click Next. Note that many features are be listed in multiple categories for convenience, though not all features are not included in the "All" category.

If Eclipse crashes during an install, just restart and try again. Launching Eclipse with a different JDK, orgiving Eclipse more memory may also help.

9. If you encounter problems resolving dependencies, you can click 'Available Software Sites' and manually add or enable missing sites. You can also import the list of required sites from abookmarks.xml.

10. After fetching all the features and plugins for installation, you will be prompted that your selection contains unsigned jars.This is normal, and should not be seen as an "unsafe" installation. Simply accept the warning and continue. 

11. Install. Restart when prompted.

12. If the install gets stuck on a particular jar download (bandwidth saturation, slow mirror, etc.), you can shut down Eclipse and try again. Ignore any errors you get when starting the second time - a completed install should resolve them so that when you restart the third time you will be ready to go.

Enjoy!