jquery easyui tree动态加载-服务端struts返回json数据
json
适用于现代 C++ 的 JSON。
项目地址:https://gitcode.com/gh_mirrors/js/json
免费下载资源
·
第一种方法:
js:
<script type="text/javascript">
$(function() {
$(document).ready(function() {
$.post("./test/tree.action", {}, function(json) {
$("#tt").tree({
data : json.itemsList,
onClick : function(node) {
$.post("./test/tree.action", {
"id" : node.id
}, function(json) {
$('#tt').tree('append', {
parent : node.target,
data : json.data
});
}, "json");
}
});
}, "json");
});
});
</script>
</head>
<body>
<ul id="tt"></ul>
</body>
struts:
action:
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.struts2.json.annotations.JSON;
import com.opensymphony.xwork2.ActionSupport;
public class TreeAction extends ActionSupport {
private List<Map<String, Object>> itemsList;
private int id;
@Override
public String execute() throws Exception {
itemsList = new ArrayList<Map<String, Object>>();
for (int i = 0; i < 5; i++) {
Map<String, Object> item = new HashMap<String, Object>();
item.put("id", i);
item.put("text", i);
item.put("state", "closed");
// item.put("children", itemsList2);
itemsList.add(item);
}
return super.execute();
}
@JSON(serialize = true, name = "data")
public List<Map<String, Object>> getItemsList() {
return itemsList;
}
public void setItemsList(List<Map<String, Object>> itemsList) {
this.itemsList = itemsList;
}
}
struts.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd">
<struts>
<package name="test" extends="json-default" namespace="/test">
<action name="tree"
class="com.test.struts.TreeAction">
<result name="success" type="json"></result>
</action>
</package>
</struts>
第二种方法:
js:
<script type="text/javascript">
$(function() {
$(document).ready(function() {
$("#tt2").tree({
url : "test/tree.action"
});
});
});
</script>
</head>
<body>
<ul id="tt2"></ul>
</body>
struts:
public class TreeAction extends ActionSupport {
private int id;
@Override
public String execute() throws Exception {
//可根据id查找相应节点
itemsList = new ArrayList<Map<String, Object>>();
for (int i = 0; i < 5; i++) {
Map<String, Object> item = new HashMap<String, Object>();
item.put("id", i);
item.put("text", i);
item.put("state", "closed");
// item.put("children", itemsList2);
itemsList.add(item);
}
String data = JSONUtils.toJson(itemsList).toString();
ServletActionContext.getResponse().getWriter().write(data);
return null;
}
//getter
//setter
}
GitHub 加速计划 / js / json
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适用于现代 C++ 的 JSON。
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