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<p>在配置Jenkins的jobs的时候，需要用到对XML文件的操作，因此在网上找了一些方法，总结一下：</p>
<h2 id="xml-xtree-Element库"><a href="#xml-xtree-Element库" class="headerlink" title="xml.xtree.Element库"></a>xml.xtree.Element库</h2><p>需要引入以下几个包：</p>
<figure class="highlight python"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">import</span> xml.etree.ElementTree <span class="keyword">as</span> ET</span><br><span class="line"><span class="keyword">from</span> xml.etree.ElementTree <span class="keyword">import</span> ElementTree, Element</span><br></pre></td></tr></table></figure>
<h3 id="读取XML文件到Python脚本中："><a href="#读取XML文件到Python脚本中：" class="headerlink" title="读取XML文件到Python脚本中："></a>读取XML文件到Python脚本中：</h3><h4 id="方法一：从文件中读取"><a href="#方法一：从文件中读取" class="headerlink" title="方法一：从文件中读取"></a>方法一：从文件中读取</h4><figure class="highlight python"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">tree = ElementTree()</span><br><span class="line">tree.parse(xmlPath)</span><br></pre></td></tr></table></figure>
<h4 id="方法二：从字符串中读取"><a href="#方法二：从字符串中读取" class="headerlink" title="方法二：从字符串中读取"></a>方法二：从字符串中读取</h4><figure class="highlight python"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">tree = ET.fromstring(xmlString)</span><br></pre></td></tr></table></figure>
<h3 id="寻找某个节点-nodeName或Path"><a href="#寻找某个节点-nodeName或Path" class="headerlink" title="寻找某个节点(nodeName或Path)"></a>寻找某个节点(nodeName或Path)</h3><figure class="highlight python"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">node = tree.find(tagNameOrPath) <span class="comment"># 可以通过tag name或者path寻找到第一个符合的节点，没有找到返回None</span></span><br></pre></td></tr></table></figure>
<h3 id="增加-改变-删除节点的属性"><a href="#增加-改变-删除节点的属性" class="headerlink" title="增加/改变/删除节点的属性"></a>增加/改变/删除节点的属性</h3><figure class="highlight python"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">node.set(key, value) <span class="comment"># 增加或修改node下名称为key的属性，值为value</span></span><br><span class="line"><span class="keyword">del</span> node.attrib[key] <span class="comment"># 删除node下名称为key的属性</span></span><br></pre></td></tr></table></figure>
<h3 id="对节点增加-改变-删除文本"><a href="#对节点增加-改变-删除文本" class="headerlink" title="对节点增加/改变/删除文本"></a>对节点增加/改变/删除文本</h3><figure class="highlight python"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br></pre></td><td class="code"><pre><span class="line">node.text += text <span class="comment"># 增加</span></span><br><span class="line">node.text = text <span class="comment"># 改变</span></span><br><span class="line">node.text = <span class="string">''</span> <span class="comment"># 删除</span></span><br><span class="line"><span class="string">'''</span></span><br><span class="line"><span class="string">总之，对node.text进行操作就对了</span></span><br><span class="line"><span class="string">'''</span></span><br></pre></td></tr></table></figure>
<h3 id="创建一个新的节点"><a href="#创建一个新的节点" class="headerlink" title="创建一个新的节点"></a>创建一个新的节点</h3><figure class="highlight python"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">element = Element(tag, propertyDict) <span class="comment"># tag是新节点的名称，propertyDict是新节点的属性字典</span></span><br><span class="line">element.text = text <span class="comment"># 新节点的文本内容</span></span><br></pre></td></tr></table></figure>
<h3 id="在节点下加入-删除节点"><a href="#在节点下加入-删除节点" class="headerlink" title="在节点下加入/删除节点"></a>在节点下加入/删除节点</h3><figure class="highlight python"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">node.append(element) <span class="comment"># 加入多个节点时可以用extend(subelements)</span></span><br><span class="line">node.remove(element) <span class="comment"># 删除node下的element节点</span></span><br></pre></td></tr></table></figure>
<p>更多细节，可以查看官方文档：</p>
<p><a href="https://docs.python.org/2/library/xml.etree.elementtree.html#xml-tree-and-elements" target="_blank" rel="noopener">https://docs.python.org/2/library/xml.etree.elementtree.html#xml-tree-and-elements</a></p>
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<div style="text-align:center;color: #ccc;font-size:14px;">-------------本文结束<i class="fa fa-paw"></i>感谢您的阅读-------------</div>
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<div class="post-toc-content"><ol class="nav"><li class="nav-item nav-level-2"><a class="nav-link" href="#xml-xtree-Element库"><span class="nav-number">1.</span> <span class="nav-text">xml.xtree.Element库</span></a><ol class="nav-child"><li class="nav-item nav-level-3"><a class="nav-link" href="#读取XML文件到Python脚本中："><span class="nav-number">1.1.</span> <span class="nav-text">读取XML文件到Python脚本中：</span></a><ol class="nav-child"><li class="nav-item nav-level-4"><a class="nav-link" href="#方法一：从文件中读取"><span class="nav-number">1.1.1.</span> <span class="nav-text">方法一：从文件中读取</span></a></li><li class="nav-item nav-level-4"><a class="nav-link" href="#方法二：从字符串中读取"><span class="nav-number">1.1.2.</span> <span class="nav-text">方法二：从字符串中读取</span></a></li></ol></li><li class="nav-item nav-level-3"><a class="nav-link" href="#寻找某个节点-nodeName或Path"><span class="nav-number">1.2.</span> <span class="nav-text">寻找某个节点(nodeName或Path)</span></a></li><li class="nav-item nav-level-3"><a class="nav-link" href="#增加-改变-删除节点的属性"><span class="nav-number">1.3.</span> <span class="nav-text">增加/改变/删除节点的属性</span></a></li><li class="nav-item nav-level-3"><a class="nav-link" href="#对节点增加-改变-删除文本"><span class="nav-number">1.4.</span> <span class="nav-text">对节点增加/改变/删除文本</span></a></li><li class="nav-item nav-level-3"><a class="nav-link" href="#创建一个新的节点"><span class="nav-number">1.5.</span> <span class="nav-text">创建一个新的节点</span></a></li><li class="nav-item nav-level-3"><a class="nav-link" href="#在节点下加入-删除节点"><span class="nav-number">1.6.</span> <span class="nav-text">在节点下加入/删除节点</span></a></li></ol></li></ol></div>
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