FastJson解析Json，封装JavaBean对象
获取到前端的Json，后台对应封装JavaBean对象，对其解析赋值
获取到前端的json，对其进行分析
1、获取最外层前端json对应得JavaBean
（1）未分析格式的json串
首先我们获取到原始的json字符串
{
"type":"start",
"content":"所有人",
"properties":{
"title":"发起人124124",
"initiator":"ALL",
"nodeName":"发起人124124",
"withdrawSwitch":true,
"memberSet":[
{
"deptId":38165,
"nickName":"白波",
"userId":417586,
"userName":"baiboit"
}
],
"formOperates":[
{
"name":"单行输入框",
"key":"1598583241000_12287",
"type":"input",
"checkedList":[
"visibility"
]
},
{
"name":"单选框",
"key":"1598583242000_8033",
"type":"radio",
"checkedList":[
"visibility"
]
},
{
"name":"日期",
"key":"1598583244000_29500",
"type":"date",
"checkedList":[
"visibility"
]
}
]
},
"nodeId":"SID-55cf0a21-2ebc-febe-dc71-f5a629374be6",
"childNode":{
"type":"fill",
"content":"发起人自选",
"properties":{
"title":"填报人",
"menbers":{
"dep":[
{
"nodeId":4,
"deptId":4,
"deptName":"xxx研发部",
"parentDeptId":1
}
]
},
"userOptional":true,
"nodeName":"填报人",
"fillSetSwitch":false,
"memberSet":[
{
"deptId":38165,
"nickName":"吴妮婷",
"userId":417571,
"userName":"wuniting"
}
],
"memberSetOptional":[
{
"deptId":null,
"nickName":"",
"userId":null,
"userName":null
}
],
"circulationRules":"",
"processNodeTipForm":{
"arriveReminders":[
],
"UntreatedNum":"",
"UntreatedTime":"",
"AutoAlert":[
]
},
"formOperates":[
{
"name":"",
"type":"",
"key":"",
"checkedList":[
"visibility",
"write"
]
}
]
},
"nodeId":"SID-6745bda6-55fd-9029-ac2e-b6bf38e756db",
"prevId":"SID-55cf0a21-2ebc-febe-dc71-f5a629374be6",
"childNode":{
"type":"fill",
"content":"发起人自选",
"properties":{
"title":"填报人12323455",
"menbers":{
"dep":[
{
"nodeId":4,
"deptId":4,
"deptName":"xxx研发部",
"parentDeptId":1
}
]
},
"userOptional":true,
"nodeName":"填报人",
"fillSetSwitch":false,
"memberSet":[
{
"deptId":38165,
"nickName":"张淼",
"userId":417557,
"userName":"zhangmiao"
}
],
"memberSetOptional":[
{
"deptId":null,
"nickName":"",
"userId":null,
"userName":null
}
],
"circulationRules":"renyi",
"processNodeTipForm":{
"arriveReminders":[
"shortMessage",
"mail"
],
"UntreatedNum":"30",
"UntreatedTime":"minutes",
"AutoAlert":[
"shortMessage"
]
},
"formOperates":[
{
"name":"单行输入框",
"key":"1598583241000_12287",
"type":"input",
"checkedList":[
"visibility"
]
},
{
"name":"单选框",
"key":"1598583242000_8033",
"type":"radio",
"checkedList":[
"visibility"
]
},
{
"name":"日期",
"key":"1598583244000_29500",
"type":"date",
"checkedList":[
"visibility"
]
}
]
},
"nodeId":"SID-2bbfe3a8-4c3b-a143-e644-6193fe141426",
"prevId":"SID-6745bda6-55fd-9029-ac2e-b6bf38e756db",
"childNode":{
"nodeId":"SID-990e8b6a-68d1-dcf9-9ad1-00f8d2ccdc6a",
"type":"approver",
"content":"发起人自选",
"properties":{
"title":"审批人123124",
"nodeName":"审批人",
"assigneeType":"optional",
"approverSetSwitch":false,
"memberSet":[
{
"deptId":38165,
"nickName":"袁嵩",
"userId":417555,
"userName":"yuansong"
}
],
"memberSetOptional":[
{
"deptId":null,
"nickName":"",
"userId":null,
"userName":null
}
],
"fillSwitch":false,
"ccSetSwitch":false,
"approvalOpinions":"disable",
"backOff":{
"Switch":true,
"backOffState":false,
"backOffNode":"faqiren",
"btnName":"1213",
"surebackOffNode":"zhiding"
},
"transfer":{
"Switch":false,
"transferState":false,
"btnName":"",
"memberSet":[
{
"deptId":38165,
"nickName":"袁嵩",
"userId":417555,
"userName":"yuansong"
}
]
},
"addApproverPerson":{
"Switch":false,
"addApproverState":false,
"btnName":"",
"memberSet":[
{
"deptId":38165,
"nickName":"袁嵩",
"userId":417555,
"userName":"yuansong"
}
]
},
"addCcPerson":{
"Switch":false,
"addCcState":false,
"btnName":"",
"memberSet":[
{
"deptId":38165,
"nickName":"袁嵩",
"userId":417555,
"userName":"yuansong"
}
]
},
"addEnclosurePerson":{
"Switch":false,
"addEncloureState":false,
"btnName":"",
"findEnclosurePower":[
]
},
"circulationRules":"renyi",
"processNodeTipForm":{
"arriveReminders":[
"shortMessage",
"mail"
],
"UntreatedNum":"40",
"UntreatedTime":"minutes",
"AutoAlert":[
"shortMessage"
]
},
"formOperates":[
{
"name":"单行输入框",
"key":"1598583241000_12287",
"type":"input",
"checkedList":[
"visibility"
]
},
{
"name":"单选框",
"key":"1598583242000_8033",
"type":"radio",
"checkedList":[
"visibility"
]
},
{
"name":"日期",
"key":"1598583244000_29500",
"type":"date",
"checkedList":[
"visibility"
]
}
]
},
"prevId":"SID-2bbfe3a8-4c3b-a143-e644-6193fe141426",
"childNode":{
"nodeId":"SID-8c2cef4a-450c-a248-8328-bfaae369232a",
"type":"approver",
"content":"发起人自选",
"properties":{
"title":"审批人212",
"nodeName":"审批人",
"assigneeType":"optional",
"approverSetSwitch":false,
"memberSet":[
{
"deptId":38165,
"nickName":"莫菲",
"userId":440815,
"userName":"mofei"
}
],
"memberSetOptional":[
{
"deptId":null,
"nickName":"",
"userId":null,
"userName":null
}
],
"fillSwitch":false,
"ccSetSwitch":false,
"approvalOpinions":"required",
"backOff":{
"Switch":false,
"backOffState":false,
"backOffNode":"",
"btnName":"",
"surebackOffNode":""
},
"transfer":{
"Switch":false,
"transferState":false,
"btnName":"",
"memberSet":[
{
"deptId":38165,
"nickName":"莫菲",
"userId":440815,
"userName":"mofei"
}
]
},
"addApproverPerson":{
"Switch":false,
"addApproverState":false,
"btnName":"",
"memberSet":[
{
"deptId":38165,
"nickName":"莫菲",
"userId":440815,
"userName":"mofei"
}
]
},
"addCcPerson":{
"Switch":false,
"addCcState":false,
"btnName":"",
"memberSet":[
{
"deptId":38165,
"nickName":"莫菲",
"userId":440815,
"userName":"mofei"
}
]
},
"addEnclosurePerson":{
"Switch":false,
"addEncloureState":false,
"btnName":"",
"findEnclosurePower":[
]
},
"circulationRules":"",
"processNodeTipForm":{
"arriveReminders":[
],
"UntreatedNum":"",
"UntreatedTime":"",
"AutoAlert":[
]
},
"formOperates":[
{
"name":"",
"type":"",
"key":"",
"checkedList":[
"visibility",
"write"
]
}
]
},
"prevId":"SID-990e8b6a-68d1-dcf9-9ad1-00f8d2ccdc6a"
}
}
}
}
}
（2）初步格式化json，获取到最外层的JavaBean与其对应的字段名
紧接着，我们需要对json传中一些共性的东西进行分析，这里可以很容易看出，在后台进行解析这条json串时我们需要使用递归的思想对这一条json串进行解析，这里我推荐一个json自动格式化网站
json格式化
{
"type":"start",
"content":"所有人",
"properties":Object{...},
"nodeId":"SID-55cf0a21-2ebc-febe-dc71-f5a629374be6",
"childNode":{
"type":"fill",
"content":"发起人自选",
"properties":Object{...},
"nodeId":"SID-6745bda6-55fd-9029-ac2e-b6bf38e756db",
"prevId":"SID-55cf0a21-2ebc-febe-dc71-f5a629374be6",
"childNode":{
"type":"fill",
"content":"发起人自选",
"properties":Object{...},
"nodeId":"SID-2bbfe3a8-4c3b-a143-e644-6193fe141426",
"prevId":"SID-6745bda6-55fd-9029-ac2e-b6bf38e756db",
"childNode":{
"nodeId":"SID-990e8b6a-68d1-dcf9-9ad1-00f8d2ccdc6a",
"type":"approver",
"content":"发起人自选",
"properties":Object{...},
"prevId":"SID-2bbfe3a8-4c3b-a143-e644-6193fe141426",
"childNode":{
"nodeId":"SID-8c2cef4a-450c-a248-8328-bfaae369232a",
"type":"approver",
"content":"发起人自选",
"properties":Object{...},
"prevId":"SID-990e8b6a-68d1-dcf9-9ad1-00f8d2ccdc6a"
}
}
}
}
}
这里我们可以看到，这一条Json串中有一些共性的东西，这些便是最外层JavaBean对象中对用的字段
（3）最外层Json串对应得JavaBean实体类
/**
* Copyright 2020 bejson.com
*/
package com.activiti.domain;
/**
* Auto-generated: 2020-08-28 16:44:47
*
* @author bejson.com (i@bejson.com)
* @website http://www.bejson.com/java2pojo/
*
* 解析流程Json获取相关的信息
*/
public class JsonProcessRootBean {
/**
* 节点类型start
*/
private String type;
/**
* 节点对应的内容
*/
private String content;
/**
* 节点属性
*/
private Properties properties;
/**
* 节点id
*/
private String nodeId;
/**
* 上一任务节点的id
*/
private String prevId;
public void setType(String type) {
this.type = type;
}
public String getType() {
return type;
}
public void setContent(String content) {
this.content = content;
}
public String getContent() {
return content;
}
public void setProperties(Properties properties) {
this.properties = properties;
}
public Properties getProperties() {
return properties;
}
public void setNodeId(String nodeId) {
this.nodeId = nodeId;
}
public String getNodeId() {
return nodeId;
}
public String getPrevId() {
return prevId;
}
public void setPrevId(String prevId) {
this.prevId = prevId;
}
@Override
public String toString() {
return "JsonProcessRootBean{" +
"type='" + type + '\'' +
", content='" + content + '\'' +
", properties=" + properties +
", nodeId='" + nodeId + '\'' +
", prevId='" + prevId + '\'' +
'}';
}
}
2、仔细刨析每一层中共性的细节，发现properties这个字段也能够封装成一个实体类
（1）properties字段对应的json
{
"type":"start",
"content":"所有人",
"properties":Object{...},
"nodeId":"SID-55cf0a21-2ebc-febe-dc71-f5a629374be6",
"childNode":{
"type":"fill",
"content":"发起人自选",
"properties":{
"title":"填报人",
"menbers":Object{...},
"userOptional":true,
"nodeName":"填报人",
"fillSetSwitch":false,
"memberSet":Array[1],
"memberSetOptional":Array[1],
"circulationRules":"",
"processNodeTipForm":Object{...},
"formOperates":Array[1]
},
"nodeId":"SID-6745bda6-55fd-9029-ac2e-b6bf38e756db",
"prevId":"SID-55cf0a21-2ebc-febe-dc71-f5a629374be6",
"childNode":{
"type":"fill",
"content":"发起人自选",
"properties":Object{...},
"nodeId":"SID-2bbfe3a8-4c3b-a143-e644-6193fe141426",
"prevId":"SID-6745bda6-55fd-9029-ac2e-b6bf38e756db",
"childNode":{
"nodeId":"SID-990e8b6a-68d1-dcf9-9ad1-00f8d2ccdc6a",
"type":"approver",
"content":"发起人自选",
"properties":Object{...},
"prevId":"SID-2bbfe3a8-4c3b-a143-e644-6193fe141426",
"childNode":{
"nodeId":"SID-8c2cef4a-450c-a248-8328-bfaae369232a",
"type":"approver",
"content":"发起人自选",
"properties":Object{...},
"prevId":"SID-990e8b6a-68d1-dcf9-9ad1-00f8d2ccdc6a"
}
}
}
}
}
通过json串我们可以看出，Properties这个JavaBean对象包括Menber、ProcessNodeTipForm的JavaBean对象，包含List<MemberSet>、List<MemberSetOptional>、List<FormOperates>这里只做流程相关的操作，表单Form的砍掉三个集合
（2）Properties对应的JavaBean对象
/**
* Copyright 2020 bejson.com
*/
package com.activiti.domain;
import java.util.List;
import java.util.Set;
/**
* Auto-generated: 2020-08-28 16:44:47
*
* @author bejson.com (i@bejson.com)
* @website http://www.bejson.com/java2pojo/
*/
public class Properties {
/**
* 当前属性的title
*/
private String title;
/**
* 审批人部门，有时只传部门信息,只传部门信息，没有用户信息，整个
*/
private Menbers menbers;
/**
* 用户的操作选择
*/
private boolean userOptional;
/**
* 节点名
*/
private String nodeName;
/**
* 是否填充
*/
private boolean fillSetSwitch;
/**
* 流程自己设置的负责人
*/
private Set<MemberSet> memberSet;
/**
* 发起人自选
*/
private Set<MemberSetOptional> memberSetOptional;
/**
*
*/
private String circulationRules;
private ProcessNodeTipForm processNodeTipForm;
public void setTitle(String title) {
this.title = title;
}
public String getTitle() {
return title;
}
public void setMenbers(Menbers menbers) {
this.menbers = menbers;
}
public Menbers getMenbers() {
return menbers;
}
public void setUserOptional(boolean userOptional) {
this.userOptional = userOptional;
}
public boolean getUserOptional() {
return userOptional;
}
public void setNodeName(String nodeName) {
this.nodeName = nodeName;
}
public String getNodeName() {
return nodeName;
}
public void setFillSetSwitch(boolean fillSetSwitch) {
this.fillSetSwitch = fillSetSwitch;
}
public boolean getFillSetSwitch() {
return fillSetSwitch;
}
public Set<MemberSet> getMemberSet() {
return memberSet;
}
public void setMemberSet(Set<MemberSet> memberSet) {
this.memberSet = memberSet;
}
public Set<MemberSetOptional> getMemberSetOptional() {
return memberSetOptional;
}
public void setMemberSetOptional(Set<MemberSetOptional> memberSetOptional) {
this.memberSetOptional = memberSetOptional;
}
public void setCirculationRules(String circulationRules) {
this.circulationRules = circulationRules;
}
public String getCirculationRules() {
return circulationRules;
}
public void setProcessNodeTipForm(ProcessNodeTipForm processNodeTipForm) {
this.processNodeTipForm = processNodeTipForm;
}
public ProcessNodeTipForm getProcessNodeTipForm() {
return processNodeTipForm;
}
@Override
public String toString() {
return "Properties{" +
"title='" + title + '\'' +
", menbers=" + menbers +
", userOptional=" + userOptional +
", nodeName='" + nodeName + '\'' +
", fillSetSwitch=" + fillSetSwitch +
", memberSet=" + memberSet +
", memberSetOptional=" + memberSetOptional +
", circulationRules='" + circulationRules + '\'' +
", processNodeTipForm=" + processNodeTipForm +
'}';
}
}
（3）MemberSet、FormOperates的Java实体类对应为
MemberSet
/**
* Copyright 2020 bejson.com
*/
package cmcc.it.project.light.manage.domain.processjson;
/**
* Auto-generated: 2020-08-28 16:44:47
* 根据前端传入的json封装的JavaBean实体对象，审批人信息
* @author bejson.com (i@bejson.com)
* @website http://www.bejson.com/java2pojo/
*/
public class MemberSet {
/**
* 流程设置审批人的部门id
*/
private String deptId;
/**
* 用户的别名
*/
private String nickName;
/**
* 用户的用户id
*/
private String userId;
/**
* 用户名
*/
private String userName;
public String getDeptId() {
return deptId;
}
public void setDeptId(String deptId) {
this.deptId = deptId;
}
public String getNickName() {
return nickName;
}
public void setNickName(String nickName) {
this.nickName = nickName;
}
public String getUserId() {
return userId;
}
public void setUserId(String userId) {
this.userId = userId;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
@Override
public String toString() {
return "MemberSet{" +
"deptId='" + deptId + '\'' +
", nickName='" + nickName + '\'' +
", userId='" + userId + '\'' +
", userName='" + userName + '\'' +
'}';
}
}
FormOperates
package cmcc.it.project.light.manage.domain.processjson;
import java.util.List;
/**
* @author zhudunfeng
* @date 2020/9/4 9:45
* 解析json
*/
public class FormOperates {
private String name;
private String key;
private String type;
private List<String> checkedList;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getKey() {
return key;
}
public void setKey(String key) {
this.key = key;
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public List<String> getCheckedList() {
return checkedList;
}
public void setCheckedList(List<String> checkedList) {
this.checkedList = checkedList;
}
@Override
public String toString() {
return "FormOperates{" +
"name='" + name + '\'' +
", key='" + key + '\'' +
", type='" + type + '\'' +
", checkedList=" + checkedList +
'}';
}
}
、、、这样对接送不断进行分析与封装
3、使用fastJson解析json对JavaBean对象进行赋值
/**
* 解析前端的自定义流程Json信息
* @param modelId
* @return Json对应的实体类对象信息
* @author zhudunfeng
*/
@Override
public List<JsonProcessRootBean> parsejsonProcessRootBean(String modelId) {
//获取流程模板数据
ActDeModel actDeModel = actDeModelMapper.selectActDeModelById(modelId);
String modelEditorJson =actDeModel.getModelEditorJson();
List<JsonProcessRootBean> jsonProcessRootBeanList = new ArrayList<>();
String childNode = modelEditorJson;
while (null != childNode && !"".equals(childNode)) {
try {
JsonProcessRootBean jsonProcessRootBean = new JsonProcessRootBean();
//流程json
JSONObject jsonObject = JSONObject.parseObject(childNode);
//开始装配流程节点数据
jsonProcessRootBean.setNodeId(jsonObject.get("nodeId").toString());
jsonProcessRootBean.setType(jsonObject.get("type").toString());
jsonProcessRootBean.setContent(jsonObject.get("content").toString());
//节点的变量名
jsonProcessRootBean.setAssignee(jsonObject.get("assignee").toString());
//会签节点的变量名
if (jsonObject.get("assigneeList") != null) {
jsonProcessRootBean.setAssigneeList(jsonObject.get("assigneeList").toString());
}
//发起节点没有prevId属性，其他节点都有prevId属性
if (jsonObject.get("prevId") != null) {
jsonProcessRootBean.setPrevId(jsonObject.get("prevId").toString());
}
//开始解析当前节点的人员数据
//1、获取properties属性值
JSONObject propertiesObj = JSONObject.parseObject(jsonObject.get("properties").toString());
Properties properties = new Properties();
if (null != propertiesObj && !"".equals(propertiesObj)) {
properties.setTitle(propertiesObj.get("title").toString());
Object userOptional = propertiesObj.get("userOptional");
if (userOptional != null) {
properties.setUserOptional((Boolean)userOptional);
}
Object fillSetSwitch = propertiesObj.get("fillSetSwitch");
if (fillSetSwitch != null) {
properties.setFillSetSwitch((Boolean)fillSetSwitch);
}
properties.setNodeName(propertiesObj.get("nodeName").toString());
//当前任务节点是否为会签节点
properties.setCountersign(propertiesObj.get("countersign").toString());
List<MemberSet> processNodeMemberSet = new ArrayList<>();
List<MemberSetOptional> processNodeMemberSetOptional=new ArrayList<>();
List<DeptSet> processNodeDeptSet=new ArrayList<>();
List<FormOperates> processNodeFormOperatesSet=new ArrayList<>();
//获取memberSet属性值，转换为JSONArray数组类型
JSONArray memberSetArray = JSONArray.parseArray(propertiesObj.get("memberSet").toString());
Object memberSetOptional = propertiesObj.get("memberSetOptional");
JSONArray memberSetOptionalArray=null;
if (memberSetOptional != null&&!"".equals(memberSetOptional)) {
memberSetOptionalArray = JSONArray.parseArray(memberSetOptional.toString());
}
Object deptSet = propertiesObj.get("deptSet");
JSONArray deptSetArray=null;
if (deptSet != null&&!"".equals(deptSet)) {
deptSetArray= JSONArray.parseArray(deptSet.toString());
}
Object formOperatesList = propertiesObj.get("formOperates");
JSONArray formOperatesArray=null;
if (formOperatesList != null) {
formOperatesArray= JSONArray.parseArray(formOperatesList.toString());
}
//如果当前节点有选择的人员数据
if(memberSetArray != null && memberSetArray.size() >= 0){
//遍历memberSet数组
for (Object obj : memberSetArray) {
JSON memberSetJson = (JSON) obj;
//转换为实体类对象
MemberSet processNodeMember = JSON.parseObject(memberSetJson.toJSONString(),
new TypeReference<MemberSet>() {
});
processNodeMemberSet.add(processNodeMember);
}
}
//如果是发起人自选
if(memberSetOptionalArray != null && memberSetOptionalArray.size() >= 0){
//遍历memberSetOptional数组
for (Object obj : memberSetOptionalArray) {
JSON memberSetOptionalJson = (JSON) obj;
//转换为实体类对象
MemberSetOptional processNodeMemberOptional = JSON.parseObject(memberSetOptionalJson.toJSONString(),
new TypeReference<MemberSetOptional>() {
});
processNodeMemberSetOptional.add(processNodeMemberOptional);
}
}
//部门信息
if(deptSetArray!=null&&deptSetArray.size()>0){
//遍历deptSetArray数组
for (Object obj : deptSetArray) {
JSON deptSetJson = (JSON) obj;
//转换为实体类对象
DeptSet deptSet1 = JSON.parseObject(deptSetJson.toJSONString(),
new TypeReference<DeptSet>() {
});
processNodeDeptSet.add(deptSet1);
}
}
//formOperates
if(formOperatesArray!=null&&formOperatesArray.size()>0){
//遍历formOperatesArray数组
for (Object obj : formOperatesArray) {
JSON formOperatesJson= (JSON) obj;
//转换为实体类
FormOperates formOperates = JSON.parseObject(formOperatesJson.toJSONString(),
new TypeReference<FormOperates>() {
});
processNodeFormOperatesSet.add(formOperates);
}
}
properties.setMemberSet(processNodeMemberSet);
properties.setMemberSetOptional(processNodeMemberSetOptional);
properties.setDeptSet(processNodeDeptSet);
properties.setFormOperates(processNodeFormOperatesSet);
}
jsonProcessRootBean.setProperties(properties);
jsonProcessRootBeanList.add(jsonProcessRootBean);
//更新childNode
childNode = "";
Object childNodeObj = jsonObject.get("childNode");
//有下一节点
if (childNodeObj != null) {
childNode = JSON.toJSONString(jsonObject.get("childNode"));
}
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
return jsonProcessRootBeanList;
}
请大家提出意见，进行优化
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