public class CategoryHelper { private static final Log log = LogFactory.getLog(CategoryHelper.class); /* @Autowired public CategoryManager categoryManager; @Autowired public CategoryJdbcUtil categoryJdbcUtil;*/ public CategoryManager categoryManager=new CategoryManager(); public CategoryJdbcUtil categoryJdbcUtil= new CategoryJdbcUtil();
List<Category> categorys = categoryManager .findChildrenCategory(categoryId); System.out.println(categorys.size()+"-----categorys.size()----"); if (categorys.isEmpty()) return ""; int i = 0; for (Category category : categorys) { if (i > 0) { jsonString.append(","); } jsonString.append(toJSONString(category)); i++; }
private String generateInitTreeString() { StringBuilder jsonString = new StringBuilder(); jsonString.append("[");
List<Category> categorys = categoryManager.getRoot(); int i = 0; for (Category category : categorys) { if (i > 0) { jsonString.append(","); } jsonString.append(toJSONString(category)); i++; }
您好，这个我看过的。不过我想要一个能够冬天绑定数据的。
这里面的好像数据都是手动写在里面的。
也许我太笨了，如果你有自己做的Demo能否发一个给我。谢谢。
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<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://"
+ request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<link rel="stylesheet" href="http://dev.jquery.com/view/trunk/plugins/treeview/jquery.treeview.css" />
<link rel="stylesheet" href="red-treeview.css" />
<link rel="stylesheet" href="screen.css" />
<title>My JSP 'index.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<script type="text/javascript" src="jquery-1.3.2.js"></script>
<script type="text/javascript" src="jquery.treeview.js"></script>
<script type="text/javascript" src="jquery.treeview.async.js"></script>
<script type="text/javascript" src="jquery.cookie.js"></script>
<script type="text/javascript">
//$(document).ready(function(){
$( function(){
$("#tree").treeview({
url: "treeViewAction.do"
})
});
</script>
</head>
<body>
This is my JSP page.
<button id="jquery">jquery</button>
<ul id="tree" class="filetree">
<li><span class="folder">Folder 1</span>
<ul>
<li><span class="folder">Item 1.1</span>
<ul>
<li><span class="file">Item 1.1.1</span></li>
</ul>
</li>
<li><span class="folder">Folder 2</span>
<ul>
<li><span class="folder">Subfolder 2.1</span>
<ul id="folder21">
<li><span class="file">File 2.1.1</span></li>
<li><span class="file">File 2.1.2</span></li>
</ul>
</li>
<li><span class="folder">Subfolder 2.2</span>
<ul>
<li><span class="file">File 2.2.1</span></li>
<li><span class="file">File 2.2.2</span></li>
</ul>
</li>
</ul>
</li>
<li class="closed"><span class="folder">Folder 3 (closed at start)</span>
<ul>
<li><span class="file">File 3.1</span></li>
</ul>
</li>
<li><span class="file">File 4</span></li>
</ul>
</li>
</ul>
<br>
</body>
</html>实现类：package com.yourcompany.service;import java.util.List;import javax.servlet.http.HttpServletRequest;import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;import com.yourcompany.entity.Category;
public class CategoryHelper {
private static final Log log = LogFactory.getLog(CategoryHelper.class);
/* @Autowired
public CategoryManager categoryManager;
@Autowired
public CategoryJdbcUtil categoryJdbcUtil;*/
public CategoryManager categoryManager=new CategoryManager();
public CategoryJdbcUtil categoryJdbcUtil= new CategoryJdbcUtil();
// ========================= 产生jquery.treeview的jsonstring=================//
public String generateJTVJsonString(HttpServletRequest request) {
log.info("generateJTVJsonString start .....");
//HttpServletRequest request = Struts2Utils.getRequest();
String id = request.getParameter("root");
System.out.println(id+"---------id---------");
log.info("id:"+id);
String output = "";
if (id == null) {
return "";
} else if (id.equalsIgnoreCase("source")) {
output = generateInitTreeString();
} else {
output = generateTreeChildNodeString(Long.parseLong(id));
}
log.info("generateJTVJsonString end,return:"+"("+output+")");
return output;
}
// 产生子节点jsonstring
private String generateTreeChildNodeString(Long categoryId) {
StringBuilder jsonString = new StringBuilder();
jsonString.append("[");
List<Category> categorys = categoryManager
.findChildrenCategory(categoryId);
System.out.println(categorys.size()+"-----categorys.size()----");
if (categorys.isEmpty())
return "";
int i = 0;
for (Category category : categorys) {
if (i > 0) {
jsonString.append(",");
}
jsonString.append(toJSONString(category));
i++;
}
jsonString.append("]");
return jsonString.toString();
}
private String toJSONString(Category category) {
StringBuilder sb = new StringBuilder();
sb.append(" {");
sb.append(" \"text\": \"" + generateLinkString(category) + "\"");
if (categoryJdbcUtil.hasChild(category)) {
sb.append(", \"id\":\"" + category.getCatId() + "\"");
sb.append(", \"hasChildren\":true");
}
sb.append(" }");
return sb.toString();
}
private String generateLinkString(Category category) {
//String link = "<a href='javascript:on_cat_click("+category.getCatId()+"); >" + category.getCatName() + "</a>";
String link = category.getCatName();
return link;
}
private String generateInitTreeString() {
StringBuilder jsonString = new StringBuilder();
jsonString.append("[");
List<Category> categorys = categoryManager.getRoot();
int i = 0;
for (Category category : categorys) {
if (i > 0) {
jsonString.append(",");
}
jsonString.append(toJSONString(category));
i++;
}
jsonString.append("]");
return jsonString.toString();
}
// ==================== 产生jquery.treeview的jsonstring 结束=================//
}
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