快速启动一个Java Web编程框架

< !DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
< html xmlns:rsf="http://ponder.org.uk/rsf" xmlns="http://www.w3.org/1999/xhtml"
lang="en" xml:lang="en">
　　< head>
　　< meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
　　< title rsf:id="msg=title">Recipe List< /title>
　　< link href="../css/styles.css" type="text/css" rel="stylesheet" media="all"/>
　　< /head>
　　< body>
　　< h1 rsf:id="msg=header">Recipe List< /h1>
　　< ul rsf:id="message-for:*" style="margin:0px;">
　　< li>Message for user here< /li>
　　< /ul>
　　< h4 rsf:id="current_count">There are currently {0} item(s).< /h4>
　　< ul>
　　< li rsf:id="current_items:">
　　< span rsf:id="row_item">An Item< /span>
　　< /li>
　　< /ul>
　　< a rsf:id="add_item">Add an Item< /a>
　　< /body>
　　< /html> 

< !DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
< html xmlns:rsf="http://ponder.org.uk/rsf" xmlns="http://www.w3.org/1999/xhtml" 
lang="en" xml:lang="en">
　　< head>
　　< meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
　　< title rsf:id="msg=title">Recipe List< /title>
　　< link href="../css/styles.css" type="text/css" rel="stylesheet" media="all"/>
　　< /head>
　　< body>
　　< h1 rsf:id="msg=header">Recipe List< /h1>
　　< ul rsf:id="message-for:*" style="margin:0px;">
　　< li>Message for user here< /li>
< /ul>
　　< form rsf:id="form">
　　< fieldset>
　　< legend rsf:id="msg=form_legend">Add an Item to the List< /legend>
　　< ol>
　　< li>
　　< label rsf:id="msg=label_item">Item:< /label>
　　< input type="text" rsf:id="item" />
　　< /li>
　　< /ol>
　　< div class="buttonwrap">
　　< input type="submit" rsf:id="submit" value="Submit" />
　　< /div>
　　< /fieldset>
　　< /form>
　　< /body>
　　< /html>

　  messages.properties 
　　title = Recipe List
　　header = Recipe List
　　form_legend = Add an Item to the List
　　label_item = Item:
　　current_items_count = There are currently {0} item(s).

      RecipeListProducer 　...
　　public class RecipeListProducer implements ViewComponentProducer, DefaultView {
　　public static String VIEW_ID = "recipelist";
　　public String getViewID() {
　　return VIEW_ID;
　　}
　　private RecipeListService service;
　　public void setService(RecipeListService service) {
　　this.service = service;
　　}
　　public void fillComponents(UIContainer tofill, ViewParameters viewparams,
　　ComponentChecker checker) {
　　//Build Recipe List
　　List< String> items = service.getItems();
　　UIMessage.make(tofill, "current_count", "current_items_count", new Object[] {items.size()});
　　for (String item : items){
　　//Create a new < li> element
　　UIBranchContainer row = UIBranchContainer.make(tofill, "current_items:");
　　UIOutput.make(row, "row_item", item);
　　}
　　//Create Link to Add Item Form
　　UIInternalLink.make(tofill, "add_item", new SimpleViewParameters(ItemFormProducer.VIEW_ID));
　　}
　　}

      ItemFormProducer.java 
　　...
　　public class ItemFormProducer
　　implements ViewComponentProducer, NavigationCaseReporter {
　　public static String VIEW_ID = "itemForm";
　　public String getViewID() {
　　return VIEW_ID;
　　}
　　public void fillComponents(UIContainer tofill, ViewParameters viewparams,
　　ComponentChecker checker) {
　　//Build Form
　　UIForm form = UIForm.make(tofill, "form");
　　UIInput.make(form, "item", "${RecipeListBean.item}");
　　UICommand.make(form, "submit", "#{RecipeListBean.processActionSubmit}");
　　}
　　public List< NavigationCase> reportNavigationCases() {
　　List< NavigationCase> nav = new ArrayList< NavigationCase>();
　　nav.add(new NavigationCase("success",
　　new SimpleViewParameters(RecipeListProducer.VIEW_ID)));
　　return nav;
　　}　　}

　　       RecipeListBean.java 　　...
　　public class RecipeListBean {
　　private RecipeListService service;
　　private String item;
　　public String processActionSubmit(){
　　if (item != null && item.length() > 0) {
　　service.addRecipe(item);
　　//Return string for NavigationCase
　　return "success";
　}else{
　　return "failure";
　　}
　}
　　... Getters and Setters Omitted...