打开源码网页，选择下图所示红框的下拉列表
 
 
若是需要在windows平台下载，则直接选择Download ZIP即可
若是需要在linux平台下载，则复制git clone下载链接，并在linux命令行 执行命令进行代码下载，直到下载完成。
 
git clone https://github.com/orocos/orocos_kinematics_dynamics.git
 
 

 

   
 
 
 
 
  
从github上下载源码的三种方式
 
  
CreationTime--2018年6月7日15点21分
 
  
Author:Marydon
 
  
1.情景展示
 
  
 
  
2.实现方式
 
  
　　方式一：直接点击"DownloadZIP"，下载到本地的是一个源码zip压缩包；
 
  
　　方式二：使用eclipse的git插件下载
 
  
　　复制源码链接地址-->粘贴到URI一栏，下面2栏内容自动生成；
 
  
　　输入git的用户名和密码，如果没有需要注册；
 
  
 
  
　　Next-->选择一个版本-->Next
 
  
 
  
　　项目源码保存位置（git资源库位置）及项目名称-->Next
 
  
 
  
　　从git上clone源码，绿色进度条运行结束即代表clone结束
 
  
 
  
　　点击"Cancel"-->不建议直接将git项目导入到eclipse中-->结束
 
  
 
  
　　说明：源码位置就是你刚才指定的保存路径；
 
  
　　如果执意导入到eclipse中-->可以选择第三项"Import as general project"
 
  
　　方式三：借助git工具，通过git命令clone源码
 
  
　　第一步，运行"git-bash.exe"、"git-cmd.exe"、cmd命令，均可；
 
  
　　第二步，设置源码保存路径；
 
  
　　输入命令：cd 存放路径，如：cd D:\repository-git-->回车
 
  
　　第三步，使用git clone命令完成复制。
 
  
　　输入命令：git clone 源码地址，如：git clone https://github.com/ZZMarquis/gmhelper.git-->回车
 
  
 
  
　　
 
  
 
   
 相关推荐：
 
   
git 安装教程
git工具 将源码clone到本地指定目录的三种方式
   
 
 
  
 
 
 
 

   
 

  学习《Learning ROS for Robotics Programming - Second Edition》 时候从github下载源码报如下错误，后来发现是SSH key没有配置导致的问题。
 
wstool up -j8
 
error log如下：
 
 
[ros_book] Fetching git@github.com:AaronMR/Learning_ROS_for_Robotics_Programming_2nd_edition.git (version None) to /home/dev/lrrp_2nd_ws/src/ros_book
 Cloning into '/home/dev/lrrp_2nd_ws/src/ros_book'...
 The authenticity of host 'github.com (192.30.253.113)' can't be established.
 RSA key fingerprint is SHA256:nThbg6kXUpJWGl7E1IGOCspRomTxdCARLviKw6E5SY8.
 Are you sure you want to continue connecting (yes/no)? yes
 Warning: Permanently added 'github.com,192.30.253.113' (RSA) to the list of known hosts.
 Permission denied (publickey).
 fatal: Could not read from remote repository.
 
 Please make sure you have the correct access rights
 and the repository exists.
 Exception caught during install: Error processing 'ros_book' : [ros_book] Checkout of git@github.com:AaronMR/Learning_ROS_for_Robotics_Programming_2nd_edition.git version None into /home/dev/lrrp_2nd_ws/src/ros_book failed.
 
 ERROR in config: Error processing 'ros_book' : [ros_book] Checkout of git@github.com:AaronMR/Learning_ROS_for_Robotics_Programming_2nd_edition.git version None into /home/dev/lrrp_2nd_ws/src/ros_book failed.
 

 
 
配置SSH key大致过程如下：
 
1）Check that you are connecting to the correct server
 
 
ssh -vT git@github.com
OpenSSH_5.6p1, OpenSSL 0.9.8r 8 Feb 2011
debug1: Reading configuration data /Users/you/.ssh/config
debug1: Reading configuration data /etc/ssh_config
debug1: Applying options for *
debug1: Connecting to github.com [192.30.252.131] port 22.
 
 
如果输出如下“-1”，表示找不到文件，
 
 
ssh -vT git@github.com
...
debug1: identity file /Users/you/.ssh/id_rsa type -1
debug1: identity file /Users/you/.ssh/id_rsa-cert type -1
debug1: identity file /Users/you/.ssh/id_dsa type -1
debug1: identity file /Users/you/.ssh/id_dsa-cert type -1
...
debug1: Authentications that can continue: publickey
debug1: Next authentication method: publickey
debug1: Trying private key: /Users/you/.ssh/id_rsa
debug1: Trying private key: /Users/you/.ssh/id_dsa
debug1: No more authentication methods to try.
Permission denied (publickey).
 
 
如果没有那么创建新的SSH key即可。
 
 
2）Generating a new SSH key
 
 
 
Open Terminal.
 
 
Paste the text below, substituting in your GitHub email address.
 
ssh-keygen -t rsa -b 4096 -C "your_email@example.com"
 
This creates a new ssh key, using the provided email as a label.
 
Generating public/private rsa key pair.
 
 
When you're prompted to "Enter a file in which to save the key," press Enter. This accepts the default file location.
 
Enter a file in which to save the key (/Users/you/.ssh/id_rsa): [Press enter]
 
 
At the prompt, type a secure passphrase. For more information, see  "Working with SSH key passphrases".
 
Enter passphrase (empty for no passphrase): [Type a passphrase]
Enter same passphrase again: [Type passphrase again]
 
 
 
3)Adding your SSH key to the ssh-agent
 
 
 
Ensure ssh-agent is enabled:
 
# start the ssh-agent in the background
eval "$(ssh-agent -s)"
Agent pid 59566
 
 
Add your SSH key to the ssh-agent. If you used an existing SSH key rather than  generating a new SSH key, you'll need to replace id_rsa in the command with the name of your existing private key file.
 
$ ssh-add ~/.ssh/id_rsa
 
 
4)Adding a new SSH key to your GitHub account 
 
 
 
 
 
Copy the SSH key to your clipboard.
 
If your SSH key file has a different name than the example code, modify the filename to match your current setup. When copying your key, don't add any newlines or whitespace.
 
$ sudo apt-get install xclip
# Downloads and installs xclip. If you don't have `apt-get`, you might need to use another installer (like `yum`)

$ xclip -sel clip < ~/.ssh/id_rsa.pub
# Copies the contents of the id_rsa.pub file to your clipboard
 
   
 
    
Tip: If xclip isn't working, you can locate the hidden .ssh folder, open the file in your favorite text editor, and copy it to your clipboard.
 
   
 
 
In the top right corner of any page, click your profile photo, then click Settings. 
 
 
In the user settings sidebar, click SSH and GPG keys.
 
 
Click New SSH key or Add SSH key.
 
In the "Title" field, add a descriptive label for the new key. For example, if you're using a personal Mac, you might call this key "Personal MacBook Air".
Paste your key into the "Key" field.
Click Add SSH key.
If prompted, confirm your GitHub password.
 
 
 

 
 

 

前言
 
简单的记录一下，如何在spring官网下载源码。另外抱怨一下，MarkDown编辑器，修改文章保存以后有时就变成草稿，草稿就草稿吧，结果草稿箱找不到，其他地方也找不到，又的重写写新的在发表~
 
正文
 
访问spring的官网，在spring官网菜单中有一个projects的菜单选择spring framework，进入下载该页面，可以看到页面上有一只猫，如下图所示
 
 
 
下载后我解压出来有一个spring-framework-4.0.x的文件夹，里面存放spring的源码，然后在eclipse中关联这个源码文件夹就可以了。
 
存在的一些问题 
 不知道怎么回事，debug spring源码的时候，诡异的位置问题，F5跳到奇怪的位置上，定位不到自己想要的。查了一些资料，有人说是版本和当前不对应，现在使用的是4.0.2，关联4.0.x
 
使用maven构建项目的时候，下载本地仓库的jar包中包含了源码，我在eclipse看了一下，应该是自动关联的。