package com.cjonline.foundation.authority.pojo;
import java.util.arraylist;
import java.util.collections;
import java.util.iterator;
import java.util.list;
import org.apache.log4j.logger;
import com.cjonline.foundation.util.checknullempty;
/**
* 实现递归的帮助类，最终的结果可以描述成如下：
* 根(root)
* --1(子系统1)
* -----1.1
* -------1.1.1
* -------1.1.2
* ------- ....
* -----1.2
* --2(子系统2)
* -----2.1
* -------2.1.1
* -------2.1.2
* ------- ....
* -----2.2
*/
public class modellist implements java.io.serializable {
private static final logger logger = logger.getlogger(modellist.class);
private static final long serialversionuid = 6384598893693849820l;
/**
* model代表当前模块
*/
private sysmodel model;
/**
* models代表当前模块下面的子模块，
*/
private list<modellist> sublist = new arraylist<modellist>();
/**
* 菜单级别
*/
private int flag = 0;
public sysmodel getmodel() {
return model;
}
public void setmodel(sysmodel model) {
this.model = model;
}
public list<modellist> getsublist() {
return sublist;
}
public void setsublist(list<modellist> sublist) {
this.sublist = sublist;
}
public void setflag(int flag) {
this.flag = flag;
}
public int getflag() {
return flag;
}
/**
* 递归方法根据传入的模块集合形成层级菜单
*/
@suppresswarnings("unchecked")
public modellist createtree2(list<sysmodel> ms) {
//
modellist node = new modellist();
arraylist<sysmodel> fu = new arraylist<sysmodel>();// 用来存储parentid为空的父节点；
arraylist<sysmodel> childs = new arraylist<sysmodel>();// 用来存储不是系统的模块
// 将系统和模块菜单分开
for (iterator<sysmodel> it = ms.iterator(); it.hasnext();) {
sysmodel mode = (sysmodel) it.next();
string parentid = mode.getparentid();
if (parentid == null || parentid.equals("")) {
fu.add(mode);
} else {
childs.add(mode);
}
}
//由于是多个子系统，首先要找出有多少个子系统
for (sysmodel model : fu) {
modellist node1 = new modellist();
node1.setflag(0);
node1.setmodel(model);
node.sublist.add(node1);
appendchild(node1, childs);
}
return node;
}
/**
* node节点 childs为所以系统下的子节点
*/
public void appendchild(modellist node, list<sysmodel> childs) {
if (node != null) {
string systemid = node.getmodel().getsystemid();
string smid = node.getmodel().getsysmoduleid();
int flag = node.getflag();
if (childs != null && childs.size() > 0) {
for (sysmodel model : childs) {
string systemid2 = model.getsystemid();
string parentid2 = model.getparentid();
if (systemid.equals(systemid2)) {
if (parentid2.equals(smid)) {
modellist child = new modellist();
child.setmodel(model);
child.setflag(flag + 1);
node.getsublist().add(child);
appendchild(child, childs);
}
}
}
}
}
}
}
更多java递归菜单树转换成pojo对象。