目录
Logo
解析入参
Map<String,Object> param = JSON.parseObject(JSON.toJSONString(requestDTO.getBody()), Map.class);
icd10Name = (String) param.get(ICD10NAME);
代码展示
@Test
public void SendCash(){
List<Student> objects = new ArrayList<>();
Collections.addAll(objects,
new Student("王通通","男",12,"2班"), new Student("闫晓雨","女",18,"1班"), new Student("高佳琪","男",20,"4班"));
//使用排序
// Collections.sort(objects,Comparator.comparing(Student::getClazz));
// objects.stream().forEach(v -> System.out.println(v.getName()+":"+v.getClazz()));
//将Java Bean转换为JSON字符串对象
String s = JSON.toJSONString(new Student("王步嵩", "男", 26,"8班"));
System.out.println("转换对象之后"+s);
//将JSON转换为Java Bean
Student student = JSON.parseObject(s,Student.class);
//或者说这样
Student student = JSON.parseObject(JSON_OBJ_STR, new TypeReference<Student>() {});
System.out.println("转换对象之前"+student);
//将多个JSON对象放入到Java集合中
List<Student> studentList = JSON.parseArray(JSON.toJSONString(objects), Student.class);
Iterator<Student> iterator = studentList.iterator();
while(iterator.hasNext()){
Student next = iterator.next();
System.out.println(next.getName()+":"+next.getAge());
}
//将Java Ben转换为jsonObject便于使用getString() 取出一个值方法
JSONObject jsonObject = (JSONObject)JSON.toJSON(new Student("白志超", "男", 36,"12班"));
System.out.println(jsonObject.getString("name"));
}
class JSONS {
static void JS() {
List<Student> list = new ArrayList<>();
Student student = new Student("张三", "男", "1");
Collections.addAll(list, student, new Student("李四", "女", "2"), new Student("王五", "女", "2"));
System.out.println("*******javaBean to jsonString*******");
String stu = JSON.toJSONString(student);
System.out.println(stu);
System.out.println("\t" + JSON.toJSONString(list));
System.out.println("******jsonString to javaBean*******");
Student parseClass = JSON.parseObject(stu, Student.class);
System.out.println("转换前\t" + parseClass);
JSONObject jsonObject = JSON.parseObject(stu);
System.out.println("转换后\t" + jsonObject);
System.out.println("******javaBean to jsonObject******");
JSONObject o = (JSONObject) JSON.toJSON(student);
System.out.println(o);
System.out.println(o.getString("name"));
System.out.println("******jsonObject to javaBean******");
Student JavaObJ = JSON.toJavaObject(o, Student.class);
System.out.println(JavaObJ);
System.out.println("*****jsonObject to jsonString*****");
System.out.println(JSON.toJSONString(student));
System.out.println("*******jsonString to jsonObject*****");
JSONObject jso1 = JSON.parseObject(stu);
System.out.println(jso1.getString("name"));
System.out.println();
}
static void jQuery() {
System.out.println("*******javaBean to jsonArray******");
List<Student> list = new ArrayList<>();
for (int i = 0; i < 6; i++) {
Collections.addAll(list, new Student("姓名" + i, "性别" + i, "年级" + i));
}
JSONArray o = (JSONArray) com.alibaba.fastjson.JSON.toJSON(list);
for (int i = 0; i < o.size(); i++) {
System.out.println(o.get(i));
}
System.out.println();
System.out.println("*****jsonArry to javalist******");
List<Student> myList = new ArrayList<>();
for (int i = 0; i < o.size(); i++) {
myList.add(com.alibaba.fastjson.JSON.toJavaObject(o.getJSONObject(i), Student.class));
}
for (Iterator<Student> iterator = myList.iterator(); iterator.hasNext(); ) {
Student next = iterator.next();
System.out.println(next);
}
}
}
把数组中的值存入到下面List集合中
// requestDTO.getBody()----把数组中的值存入到下面List集合中
// List<ApprovalReturnInfoDTO> array=JSON.parseArray(JSON.toJSONString(requestDTO.getBody()),ApprovalReturnInfoDTO.class);
class ApprovalReturnInfoDTO implements Serializable {
/**
* 序列化
*/
private static final long serialVersionUID = 700674671863229028L;
/**
* id
*/
private String uuid;
/**
* 编码
*/
private String code;
/**
* 名称
*/
private String name;
/**
* 异常描述
*/
private String errorReason;
}
参数拼接
//参数处理
JSONObject jsonObjectCe = new JSONObject();
JSONObject head = new JSONObject();
head.put("requestType", "090028");
head.put("unitCode", "01");
head.put("userCode", "01040181");
jsonObjectCe.put("head", head);
JSONObject body = new JSONObject();
body.put("caseno", requestJson.getString("caseno")); //获取参数为JSONObject中里面为caseno的参数
jsonObjectCe.put("body", body);
格式化展示
- 占位符
-
jsonObject.getString(""age"")
- 注意
- 需要两个Jar包配合使用
- junit-4.12.jar
- hamcrest-core-1.3.jar
- 需要两个Jar包配合使用
- APP报文 0：在线 1：不在线
-
{
"resCode":"0000",
"resMsg":"成功",
"resultContent":{
"userStatus":"0",
"userCode":"24584568",
"platform":"PC"
}
}
超强工具类
//HTTP请求返回数据，根据工号对比在线人数，返回在线状态
String url = ClaimUrlConfigConstants.SEND_CAR_URL;
String body = HttpRequest.post(url + "/sunRTC/request").timeout(2000)
.body(JSONObject.toJSONString(headDTO))
.execute()
.body();
JSONObject obj = (JSONObject)JSON.parse(body); //将body转换为JSONObject格式
if(obj != null){
String resCode = obj.getString("resCode"); //使用getString取出JSONObject中的值
if("0000".equals(resCode)){
List<UserInfoVo> userList = JSON.parseArray(obj.getString("resultContent"), UserInfoVo.class); //取出数据，放入至集合中
for (UserInfoVo userInfo:userInfoVoList) {
userInfo.setPostName(userInfo.getPostName());
userList.forEach(userIfo->{
//获取工具在线信息
userInfo.setPlatform(userIfo.getPlatform());
if(userIfo.getUserCode().equals(userInfo.getUserCode())){
userInfo.setState("0");
}else {
userInfo.setState("1");
}
});
}
}
}
JSON 集合转换
//把数据转换到List集合中01
List<PolicyInfo> ts = (List<PolicyInfo>) JSONArray.parseArray(JSON.toJSONString(data.getPolicyInfos()), PolicyInfo.class);
// 把数据转换到List集合中02
List<PolicyInfo> policyInfoList = JSONArray.parseArray(JSON.toJSONString(data.getPolicyInfos()), PolicyInfo.class);
// 第三种方式
ArrayList<Student> students = JSON.parseObject(JSON_ARRAY_STR, new TypeReference<ArrayList<Student>>() {});
复杂json格式字符串与JSONObject之间的转换
转换为 数组 和 JSONObject
// 1. JSON格式字符串与JSON对象之间的转换。1.json字符串-简单对象型 与 JSONObject之间的转换
JSONObject jsonObject1 = JSON.parseObject(JSON_OBJ_STR);
// 2. json字符串-数组类型与JSONArray之间的转换
JSONArray jsonArray = JSON.parseArray(JSON_ARRAY_STR);
//遍历方式1
int size = jsonArray.size();
for (int i = 0; i < size; i++) {
JSONObject jsonObject = jsonArray.getJSONObject(i);
}
//遍历方式2
for (Object obj : jsonArray) {
JSONObject jsonObject = (JSONObject) obj;
}
outer
- 占位符
- 接下来阐述正文：（其实是copy其他人的博客，主要放在自己博客下面好找...........................）
- 华丽的分割线=====================
- JSON：fastJson的解析器，用于JSON格式字符串与JSON对象及javaBean之间的转换。
- JSONObject：fastJson提供的json对象。
- JSONArray：fastJson提供json数组对象。首先定义了三个json格式的字符串作为我们的数据源
前端传值【FastJson学习：JSON格式字符串、JSON对象及JavaBean之间的相互转换】
- 占位符
- 当前台需要传送一系列相似数据到后端时，可以考虑将其组装成json数组对象，然后转化为json形式的字符串传输到后台
nodes = $('#PmPbsSelect_tree').tree('getChecked');
var data=[];
for(var i=0;i<nodes.length;i++){
if(!isParentCheck(nodes[i],nodes)){
data.push({"id":nodes[i].id,
"pid":node.id});
}else{
data.push({"id":nodes[i].id,
"pid":null});
}
}
dataStr=JSON.stringify(data);
$.ajax({
url:ctx+"/PmWbs/savePmWbsByModel",
type:"POST",
data:{"dataStr":dataStr,
"projectId":pmProjectSelect.combobox('getValue')},
success:function(data){
basetree.tree('reload');
},
error:function(){
alert("请求失败");
},
dataType:"json"
});
JSON 转换集合 and 单个 Bean操作
* JSON转换JavaBean
* JSON转换集合JavaBean
import com.alibaba.fastjson.JSON;
import java.util.ArrayList;
import java.util.List;
public class Test02 {
//json字符串-简单对象型
private static final String JSON_OBJ_STR = "{\"studentName\":\"lily\",\"studentAge\":12}";
//json字符串-数组类型
private static final String JSON_ARRAY_STR = "[{\"studentName\":\"lily\",\"studentAge\":12},{\"studentName\":\"lucy\",\"studentAge\":15}]";
//复杂格式json字符串
private static final String STGR01 = "{\"teacherName\":\"张三\",\"teacherAge\":27,\"course\":{\"courseName\":\"english\",\"code\":1270},\"students\":[{\"studentName\":\"lily\",\"studentAge\":12},{\"studentName\":\"lucy\",\"studentAge\":15}]}";
private static final String STGR02 = "{\"teacherName\":\"李四\",\"teacherAge\":27,\"course\":{\"courseName\":\"english\",\"code\":1270},\"students\":[{\"studentName\":\"lily\",\"studentAge\":12},{\"studentName\":\"lucy\",\"studentAge\":15}]}";
public static void main(String[] args) {
List<String> list = new ArrayList<>();
list.add(STGR01);
list.add(STGR02);
//1. JSON转换为对象Bean
Teacher parseObject = JSON.parseObject(String.valueOf(STGR01), Teacher.class);
System.out.println(parseObject.toString());
/*
Teacher{teacherName='张三', teacherAge=27, course=Course@1c4af82c, students=[Student@379619aa, Student@cac736f]}
*/
//2. JSON转换为集合Bean
List<Teacher> teacherList = JSON.parseArray(list.toString(), Teacher.class);
teacherList.forEach(teacher -> {
System.out.println("师傅:" + teacher.getTeacherName() + "徒弟:" + JSON.toJSON(teacher.getStudents()));
});
/*
师傅:张三徒弟:[{"studentAge":12,"studentName":"lily"},{"studentAge":15,"studentName":"lucy"}]
师傅:李四徒弟:[{"studentAge":12,"studentName":"lily"},{"studentAge":15,"studentName":"lucy"}]
*/
}
}
class Course {
private String courseName;
private Integer code;
public String getCourseName() {
return courseName;
}
public void setCourseName(String courseName) {
this.courseName = courseName;
}
public Integer getCode() {
return code;
}
public void setCode(Integer code) {
this.code = code;
}
}
class Student {
private String studentName;
private Integer studentAge;
public String getStudentName() {
return studentName;
}
public void setStudentName(String studentName) {
this.studentName = studentName;
}
public Integer getStudentAge() {
return studentAge;
}
public void setStudentAge(Integer studentAge) {
this.studentAge = studentAge;
}
}
class Teacher {
private String teacherName;
private Integer teacherAge;
private Course course;
private List<Student> students;
public String getTeacherName() {
return teacherName;
}
public void setTeacherName(String teacherName) {
this.teacherName = teacherName;
}
public Integer getTeacherAge() {
return teacherAge;
}
public void setTeacherAge(Integer teacherAge) {
this.teacherAge = teacherAge;
}
public Course getCourse() {
return course;
}
public void setCourse(Course course) {
this.course = course;
}
public List<Student> getStudents() {
return students;
}
public void setStudents(List<Student> students) {
this.students = students;
}
@Override
public String toString() {
return "Teacher{" +
"teacherName='" + teacherName + '\'' +
", teacherAge=" + teacherAge +
", course=" + course +
", students=" + students +
'}';
}
}
