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java ?实现 json 拼接
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class="java" name="code">import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
@Target(ElementType.FIELD)
@Retention(RetentionPolicy.RUNTIME)
public @interface TreeNodeGId
{
}
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import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
@Target(ElementType.FIELD)
@Retention(RetentionPolicy.RUNTIME)
public @interface TreeNodeId
{
}
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import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.TreeMap; import com.alibaba.fastjson.JSON; import com.alibaba.fastjson.serializer.SerializerFeature; import com.google.common.collect.Lists; import com.yst.epay.api.globalconfig.annotation.TreeNodeGId; import com.yst.epay.api.globalconfig.annotation.TreeNodeId; import com.yst.epay.api.globalconfig.annotation.TreeNodeName; import com.yst.epay.api.globalconfig.annotation.TreeNodePId; import com.yst.epay.api.globalconfig.annotation.TreeNodeType; import com.yst.epay.api.globalconfig.annotation.TreeNodeValue; import com.yst.epay.api.globalconfig.util.node.BuildHelper; import com.yst.epay.api.globalconfig.util.node.JsonHelper; public class Item { /* [ { id:1, pId:0,gid:null,type:"1", name:"config_latest_version", open:true,value:"1.0.43"}, { id:2, pId:0,gid:null,type:"2", name:"app_info", open:true}, { id:3, pId:2,gid:null,type:"1", name:"app_latest_version",value:"3.1.44"}, { id:4, pId:2,gid:null,type:"1", name:"app_version_illustration",value:"gome android版本3.1.44"}, { id:5, pId:0,gid:null,type:"3", name:"country_code"}, { id:6, pId:5,gid:1,type:"1", name:"code",value:"1"}, { id:7, pId:5,gid:1,type:"1", name:"value",value:"+86"}, { id:8, pId:5,gid:1,type:"1", name:"sequence",value:"1"} { id:9, pId:0,gid:0,type:"3", name:"slide_show_list"}, { id:10, pId:9,gid:1,type:"3", name:"type",value:"slide_show_001"}, { id:11, pId:9,gid:1,type:"3", name:"effective_start_time",value:"2016-09-06 08:00:00"}, { id:12, pId:9,gid:1,type:"3", name:"effective_end_time",value:"2016-12-06 08:00:00"}, { id:13, pId:9,gid:1,type:"3", name:"times",value:"3"}, { id:14, pId:9,gid:1,type:"3", name:"sequence",value:"1"}, { id:15, pId:9,gid:1,type:"3", name:"picture_list"}, { id:16, pId:15,gid:1,type:"3", name:"code",value:"1"}, { id:17, pId:15,gid:1,type:"3", name:"vale",value:"https://h5.gomepay.com/gome/function_introduction/1.png?version=2016930"}, { id:18, pId:15,gid:1,type:"3", name:"url",value:""}, { id:19, pId:15,gid:1,type:"3", name:"sequence",value:"1"}, { id:20, pId:15,gid:2,type:"3", name:"code",value:"2"}, { id:21, pId:15,gid:2,type:"3", name:"vale",value:"https://h5.gomepay.com/gome/function_introduction/2.png?version=2016930"}, { id:22, pId:15,gid:2,type:"3", name:"url",value:""}, { id:23, pId:15,gid:2,type:"3", name:"sequence",value:"2"}, { id:24, pId:15,gid:3,type:"3", name:"code",value:"3"}, { id:25, pId:15,gid:3,type:"3", name:"vale",value:"https://h5.gomepay.com/gome/function_introduction/3.png?version=20161129"}, { id:26, pId:15,gid:3,type:"3", name:"url",value:""}, { id:27, pId:15,gid:3,type:"3", name:"sequence",value:"3"} { id:28, pId:9,gid:2,type:"3", name:"type",value:"slide_show_002"}, { id:29, pId:9,gid:2,type:"3", name:"effective_start_time",value:"2016-09-06 08:00:00"}, { id:30, pId:9,gid:2,type:"3", name:"effective_end_time",value:"2016-12-06 08:00:00"}, { id:31, pId:9,gid:2,type:"3", name:"times",value:"3"}, { id:32, pId:9,gid:2,type:"3", name:"sequence",value:"1"}, { id:33, pId:9,gid:2,type:"3", name:"picture_list"}, { id:34, pId:33,gid:1,type:"3", name:"code",value:"4"}, { id:35, pId:33,gid:1,type:"3", name:"vale",value:"https://h5.gomepay.com/gome/function_introduction/carouselfigure02.png?version=2016930"}, { id:36, pId:33,gid:1,type:"3", name:"url",value:""}, { id:37, pId:33,gid:1,type:"3", name:"sequence",value:"4"}, { id:38, pId:33,gid:2,type:"3", name:"code",value:"5"}, { id:39, pId:33,gid:2,type:"3", name:"vale",value:"https://h5.gomepay.com/gome/function_introduction/carouselfigure02.png?version=2016930"}, { id:40, pId:33,gid:2,type:"3", name:"url",value:""}, { id:41, pId:33,gid:2,type:"3", name:"sequence",value:"5"} ] */ public static void main(String[] args) throws IllegalArgumentException, IllegalAccessException { // Item(int id, int pId, int type, int gId, String name, String value) Item item1 = new Item(1,0,1,0,"config_latest_version","1.0.43"); Item item2 = new Item(2,0,2,0,"app_info",null); Item item3 = new Item(3,2,1,0,"app_latest_version","3.1.44"); Item item4 = new Item(4,2,1,0,"app_version_illustration","gome android版本3.1.44"); Item item5 = new Item(5,0,3,0,"country_code",null); Item item6 = new Item(6,5,1,1,"code","1"); Item item7 = new Item(7,5,1,1,"value","+86"); Item item8 = new Item(8,5,1,1,"sequence","1"); Item item9 = new Item(9,5,1,2,"code","2"); Item item10 = new Item(10,5,1,2,"value","+001"); Item item11 = new Item(11,5,1,2,"sequence","2"); Map map = new TreeMap<String,String>(); map.put(item1.name, item1.value); Map map2 = new TreeMap<String,String>(); map2.put(item3.name, item3.value); map2.put(item4.name, item4.value); map.put(item2.name, map2); Map map6 = new TreeMap<String,String>(); map6.put(item6.name, item6.value); map6.put(item7.name, item7.value); map6.put(item8.name, item8.value); List list = new ArrayList<Map>(); list.add(map6); map.put(item5.name,list); System.out.println(JSON.toJSONString(map2)); System.out.println(JSON.toJSONString(map)); List <Item> original = Lists.newArrayList(item1,item2,item3,item4,item5,item6,item7,item8,item9,item10,item11); List<Node> convertDatas2Nodes = BuildHelper.convertDatas2Nodes(original); List<Node> sortedNodes = BuildHelper.getSortedNodes(convertDatas2Nodes); Map result = JsonHelper.getResult(sortedNodes); System.out.println(JSON.toJSONString(result,SerializerFeature.DisableCircularReferenceDetect)); } @TreeNodeId public int id = 0; @TreeNodePId public int pId = 0; @TreeNodeType public int type = 1; // 1:k-v 2:k-o 3:k-l @TreeNodeGId public int gId = 0; // 3 存在 1 null 2 null @TreeNodeName public String name = null; @TreeNodeValue public String value = null; // 1 存在 2 null 3 null public Item(int id, int pId, int type, int gId, String name, String value) { this.id = id; this.pId = pId; this.type = type; this.gId = gId; this.name = name; this.value = value; } public int getId() { return id; } public void setId(int id) { this.id = id; } public int getpId() { return pId; } public void setpId(int pId) { this.pId = pId; } public int getType() { return type; } public void setType(int type) { this.type = type; } public int getgId() { return gId; } public void setgId(int gId) { this.gId = gId; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getValue() { return value; } public void setValue(String value) { this.value = value; } @Override public String toString() { return "Item [name=" + name + ", value=" + value + "]"; } }
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import java.util.ArrayList;
import java.util.List;
import com.yst.epay.api.globalconfig.annotation.TreeNodeGId;
import com.yst.epay.api.globalconfig.annotation.TreeNodeId;
import com.yst.epay.api.globalconfig.annotation.TreeNodeName;
import com.yst.epay.api.globalconfig.annotation.TreeNodePId;
import com.yst.epay.api.globalconfig.annotation.TreeNodeType;
import com.yst.epay.api.globalconfig.annotation.TreeNodeValue;
public class Node {
@TreeNodeId
public int id = 0;
@TreeNodePId
public int pId = 0;
@TreeNodeType
public int type = 1; // 1:k-v 2:k-o 3:k-l
@TreeNodeGId
public int gId = 0; // 3 存在 1 null 2 null
@TreeNodeName
public String name = null;
@TreeNodeValue
public String value = null; // 1 存在 2 null 3 null
public int level;
public boolean isLeaf;
private Node parent;
public List<Node> child= new ArrayList<Node>();
public Node(){}
public Node(int id, int pId, int type, int gId, String name, String value) {
this.id = id;
this.pId = pId;
this.type = type;
this.gId = gId;
this.name = name;
this.value = value;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public int getpId() {
return pId;
}
public void setpId(int pId) {
this.pId = pId;
}
public int getType() {
return type;
}
public void setType(int type) {
this.type = type;
}
public int getgId() {
return gId;
}
public void setgId(int gId) {
this.gId = gId;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getValue() {
return value;
}
public void setValue(String value) {
this.value = value;
}
public int getLevel() {
return parent == null ? 1 : parent.getLevel() + 1;
}
public void setLevel(int level) {
this.level = level;
}
public boolean isLeaf() {
return this.child.size() == 0;
}
public List<Node> getChild() {
return child;
}
public void setChild(List<Node> child) {
this.child = child;
}
public Node getParent() {
return parent;
}
public void setParent(Node parent) {
this.parent = parent;
}
public boolean isRoot(){
return this.parent == null;
}
}
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import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;
import com.alibaba.fastjson.JSON;
import com.google.common.collect.Lists;
import com.yst.epay.api.globalconfig.annotation.TreeNodeGId;
import com.yst.epay.api.globalconfig.annotation.TreeNodeId;
import com.yst.epay.api.globalconfig.annotation.TreeNodeName;
import com.yst.epay.api.globalconfig.annotation.TreeNodePId;
import com.yst.epay.api.globalconfig.annotation.TreeNodeType;
import com.yst.epay.api.globalconfig.annotation.TreeNodeValue;
import com.yst.epay.api.globalconfig.entity.Item;
import com.yst.epay.api.globalconfig.entity.Node;
public class BuildHelper {
@SuppressWarnings("rawtypes")
public static <T> List<Node> convertDatas2Nodes(List<T> datas)
throws IllegalArgumentException, IllegalAccessException
{
List<Node> nodes = new ArrayList<Node>();
Node node = null;
for (T t : datas)
{
int id = 0;
int pId = 0;
int type = 1; // 1:k-v 2:k-o 3:k-l
int gId = 0; // 3 存在 1 null 2 null
String name = null;
String value= null;
node = new Node();
Class clazz = t.getClass();
Field[] fields = clazz.getDeclaredFields();
for (Field field : fields)
{
if (field.getAnnotation(TreeNodeId.class) != null)
{
field.setAccessible(true);
id = field.getInt(t);
}
if (field.getAnnotation(TreeNodePId.class) != null)
{
field.setAccessible(true);
pId = field.getInt(t);
}
if (field.getAnnotation(TreeNodeType.class) != null)
{
field.setAccessible(true);
type = field.getInt(t);
}
if (field.getAnnotation(TreeNodeGId.class) != null)
{
field.setAccessible(true);
gId = field.getInt(t);
}
if (field.getAnnotation(TreeNodeName.class) != null)
{
field.setAccessible(true);
name = (String) field.get(t);
}
if (field.getAnnotation(TreeNodeValue.class) != null)
{
field.setAccessible(true);
value = (String) field.get(t);
}
}
node = new Node(id, pId, type, gId, name, value);
nodes.add(node);
}
for (int i = 0; i < nodes.size(); i++)
{
Node n = nodes.get(i);
for (int j = i + 1; j < nodes.size(); j++)
{
Node m = nodes.get(j);
if (m.getpId() == n.getId())
{
n.getChild().add(m);
m.setParent(n);
} else if (m.getId() == n.getpId())
{
m.getChild().add(n);
n.setParent(m);
}
}
}
//System.out.println(JSON.toJSONString(nodes,SerializerFeature.DisableCircularReferenceDetect) );
return nodes;
}
public static <T> List<Node> getSortedNodes(List<T> datas) throws IllegalArgumentException,
IllegalAccessException
{
List<Node> nodes = convertDatas2Nodes(datas);
return getRootNodes(nodes);
}
private static List<Node> getRootNodes(List<Node> nodes)
{
List<Node> root = new ArrayList<Node>();
for (Node node : nodes)
{
if (node.isRoot())
{
root.add(node);
}
}
return root;
}
/*
[
{ id:1, pId:0,gid:null,type:"1", name:"config_latest_version", open:true,value:"1.0.43"},
{ id:2, pId:0,gid:null,type:"2", name:"app_info", open:true},
{ id:3, pId:2,gid:null,type:"1", name:"app_latest_version",value:"3.1.44"},
{ id:4, pId:2,gid:null,type:"1", name:"app_version_illustration",value:"gome android版本3.1.44"},
{ id:5, pId:0,gid:null,type:"3", name:"country_code"},
{ id:6, pId:5,gid:1,type:"1", name:"code",value:"1"},
{ id:7, pId:5,gid:1,type:"1", name:"value",value:"+86"},
{ id:8, pId:5,gid:1,type:"1", name:"sequence",value:"1"}
{ id:9, pId:0,gid:0,type:"3", name:"slide_show_list"},
{ id:10, pId:9,gid:1,type:"1", name:"type",value:"slide_show_001"},
{ id:11, pId:9,gid:1,type:"1", name:"effective_start_time",value:"2016-09-06 08:00:00"},
{ id:12, pId:9,gid:1,type:"1", name:"effective_end_time",value:"2016-12-06 08:00:00"},
{ id:13, pId:9,gid:1,type:"1", name:"times",value:"3"},
{ id:14, pId:9,gid:1,type:"1", name:"sequence",value:"1"},
{ id:15, pId:9,gid:1,type:"3", name:"picture_list"},
{ id:16, pId:15,gid:1,type:"3", name:"code",value:"1"},
{ id:17, pId:15,gid:1,type:"3", name:"vale",value:"https://h5.gomepay.com/gome/function_introduction/1.png?version=2016930"},
{ id:18, pId:15,gid:1,type:"3", name:"url",value:""},
{ id:19, pId:15,gid:1,type:"3", name:"sequence",value:"1"},
{ id:20, pId:15,gid:2,type:"3", name:"code",value:"2"},
{ id:21, pId:15,gid:2,type:"3", name:"vale",value:"https://h5.gomepay.com/gome/function_introduction/2.png?version=2016930"},
{ id:22, pId:15,gid:2,type:"3", name:"url",value:""},
{ id:23, pId:15,gid:2,type:"3", name:"sequence",value:"2"},
{ id:24, pId:15,gid:3,type:"3", name:"code",value:"3"},
{ id:25, pId:15,gid:3,type:"3", name:"vale",value:"https://h5.gomepay.com/gome/function_introduction/3.png?version=20161129"},
{ id:26, pId:15,gid:3,type:"3", name:"url",value:""},
{ id:27, pId:15,gid:3,type:"3", name:"sequence",value:"3"}
{ id:28, pId:9,gid:2,type:"3", name:"type",value:"slide_show_002"},
{ id:29, pId:9,gid:2,type:"3", name:"effective_start_time",value:"2016-09-06 08:00:00"},
{ id:30, pId:9,gid:2,type:"3", name:"effective_end_time",value:"2016-12-06 08:00:00"},
{ id:31, pId:9,gid:2,type:"3", name:"times",value:"3"},
{ id:32, pId:9,gid:2,type:"3", name:"sequence",value:"1"},
{ id:33, pId:9,gid:2,type:"3", name:"picture_list"},
{ id:34, pId:33,gid:1,type:"3", name:"code",value:"4"},
{ id:35, pId:33,gid:1,type:"3", name:"vale",value:"https://h5.gomepay.com/gome/function_introduction/carouselfigure02.png?version=2016930"},
{ id:36, pId:33,gid:1,type:"3", name:"url",value:""},
{ id:37, pId:33,gid:1,type:"3", name:"sequence",value:"4"},
{ id:38, pId:33,gid:2,type:"3", name:"code",value:"5"},
{ id:39, pId:33,gid:2,type:"3", name:"vale",value:"https://h5.gomepay.com/gome/function_introduction/carouselfigure02.png?version=2016930"},
{ id:40, pId:33,gid:2,type:"3", name:"url",value:""},
{ id:41, pId:33,gid:2,type:"3", name:"sequence",value:"5"}
]
*/
@SuppressWarnings({ "unused", "rawtypes" })
public static void main(String[] args) throws IllegalArgumentException, IllegalAccessException {
Item item1 = new Item(1,0,1,0,"config_latest_version","1.0.43");
Item item2 = new Item(2,0,2,0,"app_info",null);
Item item3 = new Item(3,2,1,0,"app_latest_version","3.1.44");
Item item4 = new Item(4,2,1,0,"app_version_illustration","gome android版本3.1.44");
Item item5 = new Item(5,0,3,0,"country_code",null);
Item item6 = new Item(6,5,1,1,"code","1");
Item item7 = new Item(7,5,1,1,"value","+86");
Item item8 = new Item(8,5,1,1,"sequence","1");
Item item9 = new Item(9,0,3,0,"slide_show_list",null);
Item item10 = new Item(10,9,1,1,"type","slide_show_001");
Item item11 = new Item(11,9,1,1,"effective_start_time","2016-09-06 08:00:00");
Item item12 = new Item(12,9,1,1,"effective_end_time","2016-09-06 08:00:00");
Item item13 = new Item(13,9,1,1,"times","3");
Item item14 = new Item(14,9,1,1,"sequence","1");
Item item15 = new Item(15,9,3,1,"picture_list",null);
Item item16 = new Item(16,15,1,1,"code","1");
Item item17 = new Item(17,15,1,1,"vale","https://h5.gomepay.com/gome/function_introduction/1.png?version=2016930");
Item item18 = new Item(18,15,1,1,"url","");
Item item19 = new Item(19,15,1,1,"sequence","1");
Item item20 = new Item(20,15,1,2,"code","2");
Item item21 = new Item(21,15,1,2,"vale","https://h5.gomepay.com/gome/function_introduction/2.png?version=2016930");
Item item22 = new Item(22,15,1,2,"url","");
Item item23 = new Item(23,15,1,2,"sequence","2");
Item item24 = new Item(24,15,1,3,"code","3");
Item item25 = new Item(25,15,1,3,"vale","https://h5.gomepay.com/gome/function_introduction/3.png?version=20161129");
Item item26 = new Item(26,15,1,3,"url","");
Item item27 = new Item(27,15,1,3,"sequence","3");
Item item28 = new Item(28,9,1,2,"type","slide_show_002");
Item item29 = new Item(29,9,1,2,"effective_start_time","2016-09-06 08:00:00");
Item item30 = new Item(30,9,1,2,"effective_end_time","2016-09-06 08:00:00");
Item item31 = new Item(31,9,1,2,"times","3");
Item item32 = new Item(32,9,1,2,"sequence","2");
Item item33 = new Item(33,9,3,2,"picture_list",null);
Item item34 = new Item(34,33,1,1,"code","1");
Item item35 = new Item(35,33,1,1,"vale","https://h5.gomepay.com/gome/function_introduction/1.png?version=2016930");
Item item36 = new Item(36,33,1,1,"url","");
Item item37 = new Item(37,33,1,1,"sequence","1");
Item item38 = new Item(38,33,1,2,"code","2");
Item item39 = new Item(39,33,1,2,"vale","https://h5.gomepay.com/gome/function_introduction/2.png?version=2016930");
Item item40 = new Item(40,33,1,2,"url","");
Item item41 = new Item(41,33,1,2,"sequence","2");
List <Item> list = Lists.newArrayList(item1,item2,item3,item4,item5,item6,item7,item8,item9,item10
,item11,item12,item13,item14,item15,item16,item17,item18,item19,item20
,item21,item22,item23,item24,item25,item26,item27
,item28,item29,item30
,item31,item32,item33,item34,item35,item36,item37,item38,item39,item40
,item41
);
List<Node> nodes = convertDatas2Nodes(list);
List<Node> sortedNodes = getSortedNodes(nodes);
System.out.println(JSON.toJSONString(sortedNodes) );
Map mapresult = new TreeMap<String,String>();
Map result = JsonHelper.getResult(sortedNodes);
System.out.println(JSON.toJSONString(result));
}
}
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import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;
import com.yst.epay.api.globalconfig.entity.Node;
public class JsonHelper {
@SuppressWarnings({ "rawtypes" })
public static Map getResult2(List<Node> list){
return getResult(list);
}
@SuppressWarnings({ "rawtypes", "unchecked" })
public static List getResult3(List<Node> list){
List root = new ArrayList<Map>();
Map<String,List> ll = new HashMap<String,List>();
for (Node n :list) {
List llist = ll.get(n.pId +"@"+n.gId);
if(llist == null){
llist = new ArrayList<Node>();
}
llist.add(n);
ll.put(n.pId +"@"+n.gId,llist);
}
for (List<Node> lnode : ll.values()) {
root.add(getResult(lnode));
}
return root;
}
@SuppressWarnings({ "rawtypes", "unchecked" })
public static Map getResult(List<Node> list){
Map map = new TreeMap();
for (Node n : list) {
switch (n.type) {
case 1:
map.put(n.name, n.value);
break;
case 2:
map.put(n.name,getResult2(n.child));
break;
case 3:
map.put(n.name,getResult3(n.child));
break;
default:
break;
}
}
return map;
}
}
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在兴趣的驱动下,写一个免费的东西,有欣喜,也还有汗水,希望你喜欢我的作品,同时也能支持一下。 当然,有钱捧个钱场(支持支付宝和微信 以及扣扣群),没钱捧个人场,谢谢各位。
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