将值从config.xml加载到Page Load上的果冻文件

Question

我的应用程序中有一个自定义表单，我想将值加载到其字段中。

为此，我有一个从ItemListener扩展的类，并覆盖onUpdated方法以读取更新的配置文件，并通过创建Action对象将值设置到文本框字段，将该操作对象添加到项目并保存项目。出于某种原因，这不起作用。代码片段如下！

行动类：

public class MyAction<T extends AbstractItem> implements Action {
final private T item;
public String gitRepo;
public String gitBranch;
public String mavenGoals;
public String mavenPOM;
public String eMailRecipient;

@DataBoundConstructor
public MyAction(T item, String gitRepo, String gitBranch, String mavenGoals, String mavenPOM, String eMailRecipient) {
    this.item = item;
    this.gitRepo = gitRepo;
    this.gitBranch = gitBranch;
    this.mavenGoals = mavenGoals;
    this.mavenPOM = mavenPOM;
    this.eMailRecipient = eMailRecipient;
}
//Getter methods follow...

ItemListener类：

@Extension
public class MyActionListener extends ItemListener{

@Override
public void onUpdated(Item item){
    if(item instanceof AbstractItem)
    {
        for(Action action : Jenkins.getInstance().getActions())
            if(action.getClass()==MyAction.class)
            {
                AbstractProject proj=(AbstractProject) item;
                XmlFile projConfig=proj.getConfigFile();
                String config=projConfig.toString();
                String gitRepo=config.substring(config.indexOf("<url>")+5, config.indexOf("</url>"));
                String branch=config.substring(config.indexOf("<name>")+6,config.indexOf("</name>"));
                String mavengoals=config.substring(config.indexOf("<target>")+8,config.indexOf("<target>"));
                String mavenPom=config.substring(config.indexOf("<pom>")+5,config.indexOf("</pom>"));
                String eMailReceipient=config.substring(config.indexOf("<recipientList>")+15,config.indexOf("<recipientList>"));
                Action newAction=new MyAction((AbstractItem) item,gitRepo,branch,mavengoals,mavenPom,eMailReceipient);
                proj.addAction(newAction);
            try {
                proj.save();
            } catch (IOException ex) {
                Logger.getLogger(MyActionListener.class.getName()).log(Level.SEVERE, null, ex);
            }
            }
    }
}

}

果冻形式：

<f:form method="post" name="config" action="configSubmit">
    <f:block>
    <f:section title="${%Job Configuration}">
        <f:entry title="${%Job name}">
        <f:textbox id="name" name="name" default="${it.ItemName}"/>
        </f:entry>
   </f:section>
   <f:section title="${%Source Code Management}">
       <f:entry title="${%Git Repo}">
           <f:textbox id="repo" name="repo" default="git@github.scm.corp.mycompany.com:{Enter your git repo here}" value="${it.GitRepo}"/>
       </f:entry>
       <f:entry title="${%Branch}">
           <f:textbox id="branch" name="branch" default="master" value="${it.GitBranch}"/>
       </f:entry>
   </f:section>
       <f:section title="${%Maven Targets}">
       <f:entry title="${%Goals}">
           <f:textbox id="goals" name="goals" default="-U clean install" value="${it.MavenGoals}"/>
       </f:entry>
       <f:entry title="${%POM}">
           <f:textbox id="pom" name="pom" default="pom.xml" value="${it.MavenPOM}"/>
       </f:entry>
   </f:section>
   <f:section title="${%E-Mail Notification}">
       <f:entry title="${%Recipient}">
           <f:textbox id="emailrecipient" name="emailrecipient" default="QE DL For Notifying" value="${it.eMailRecipient}"/>
       </f:entry>
   </f:section>
   <f:section title="${%Assembler Postbuild}">
        <f:entry title="${%Assembler Target POM.xml{relative path}}">
            <f:textbox id="assemblerpom" name="assemblerpom"/>
        </f:entry>
   </f:section>
   </f:block>
    <f:bottomButtonBar>
    <f:submit value="${%Save}" />

  </f:bottomButtonBar>
</f:form>