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【C#】基于JsonConvert解析Json数据 以 java控制台打印print，思路供参考

发布时间 2023-06-08 08:53:10作者: sunny123456

【C#】基于JsonConvert解析Json数据
https://blog.csdn.net/m0_37602827/article/details/128155186

1 解析字典

        1）解析为 JObject

  1. private void ParseJson() { // 解析为JObject
  2. 	string jsonStr = "{'name': 'zhangsan', 'sex': 'male', 'age': 23}";
  3. 	JObject jo = JsonConvert.DeserializeObject<JObject>(jsonStr);
  4. 	print("name=" + jo["name"] + ", sex=" + jo["sex"] + ", age=" + jo["age"]);
  5. }

        说明：需要使用以下命名空间：

  1. using Newtonsoft.Json;
  2. using Newtonsoft.Json.Linq;

        2）解析为 Dictionary

  1. private void ParseJson() { // 解析为Dictionary<string, object>
  2. 	string jsonStr = "{'name': 'zhangsan', 'sex': 'male', 'age': 23}";
  3. 	Dictionary<string, object> dict = JsonConvert.DeserializeObject<Dictionary<string, object>>(jsonStr);
  4. 	print("name=" + dict["name"] + ", sex=" + dict["sex"] + ", age=" + dict["age"]);
  5. }

         3）解析为封装类

  1. class Student {
  2. 	public string name;
  3. 	public string sex;
  4. 	public int age;
  5. 	public override string ToString() {
  6. 		return "{name: " + name + ", sex: " + sex + ", age: " + age + "}";
  7. 	}
  8. }
  9. 	
  10. private void ParseJson() { // 解析为Student
  11. 	string jsonStr = "{'name': 'zhangsan', 'sex': 'male', 'age': 23}";
  12. 	Student stu = JsonConvert.DeserializeObject<Student>(jsonStr);
  13. 	print("stu=" + stu);
  14. }

2 解析一维数组

         1）解析为 JArray

  1. private void ParseJson() { // 解析一维数组(JArray)
  2. 	string jsonStr = "[1, 2, 3, 4, 5]";
  3. 	JArray ja = JsonConvert.DeserializeObject<JArray>(jsonStr);
  4. 	print(GetJArrayString(ja));
  5. }
  6.  
  7. private string GetJArrayString(JArray ja) {
  8. 	string str = "[";
  9. 	if (ja != null && ja.Count > 0) {
  10. 		str += ja[0];
  11. 	}
  12. 	for (int i = 1; i < ja.Count; i++) {
  13. 		str += ", " + ja[i];
  14. 	}
  15. 	return str + "]";
  16. }

        2）解析为数组

  1. private void ParseJson() { // 解析一维数组(int[])
  2. 	string jsonStr = "[1, 2, 3, 4, 5]";
  3. 	int[] arr = JsonConvert.DeserializeObject<int[]>(jsonStr);
  4. 	print(GetArrString(arr));
  5. }
  6.  
  7. private string GetArrString(int[] arr) {
  8. 	string str = "[";
  9. 	if (arr != null && arr.Length > 0) {
  10. 		str += arr[0];
  11. 	}
  12. 	for (int i = 1; i < arr.Length; i++) {
  13. 		str += ", " + arr[i];
  14. 	}
  15. 	return str + "]";
  16. }

        3）解析为列表

  1. private void ParseJson() { // 解析一维数组(List<int>)
  2. 	string jsonStr = "[1, 2, 3, 4, 5]";
  3. 	List<int> list = JsonConvert.DeserializeObject<List<int>>(jsonStr);
  4. 	print(GetListString(list));
  5. }
  6.  
  7. private string GetListString(List<int> list) {
  8. 	string str = "[";
  9. 	if (list != null && list.Count > 0) {
  10. 		str += list[0];
  11. 	}
  12. 	for (int i = 1; i < list.Count; i++) {
  13. 		str += ", " + list[i];
  14. 	}
  15. 	return str + "]";
  16. }

3 解析二维数组

         1）解析为 JArray

  1. private void ParseJson() { // 解析二维数组(JArray)
  2. 	string jsonStr = "[[1, 2], [3, 4], [5, 6]]";
  3. 	JArray ja2 = JsonConvert.DeserializeObject<JArray>(jsonStr);
  4. 	print(GetJArrayString2(ja2));
  5. }
  6.  
  7. private string GetJArrayString2(JArray ja2) {
  8. 	string str = "[";
  9. 	if (ja2 != null && ja2.Count > 0) {
  10. 		str += GetJArrayString((JArray)ja2[0]);
  11. 	}
  12. 	for (int i = 1; i < ja2.Count; i++) {
  13. 		str += ", " + GetJArrayString((JArray)ja2[i]);
  14. 	}
  15. 	return str + "]";
  16. }

        说明：GetJArrayString 方法见 2 1）节。 

         2）解析为二维数组

  1. private void ParseJson() { // 解析二维数组(int[][])
  2. 	string jsonStr = "[[1, 2], [3, 4], [5, 6]]";
  3. 	int[][] arr = JsonConvert.DeserializeObject<int[][]>(jsonStr);
  4. 	print(GetArrString2(arr));
  5. }
  6.  
  7. private string GetArrString2(int[][] arr) {
  8. 	string str = "[";
  9. 	if (arr != null && arr.Length > 0) {
  10. 		str += GetArrString(arr[0]);
  11. 	}
  12. 	for (int i = 1; i < arr.Length; i++) {
  13. 		str += ", " + GetArrString(arr[i]);
  14. 	}
  15. 	return str + "]";
  16. }

        说明：GetArrString 方法见 2 2）节。

4 解析数组字典

        1）解析为 JObject-JArray

  1. private void ParseJson() { // "数组字典"混合解析(JObject-JArray)
  2. 	string jsonStr = "{'vec1': [1, 2, 3, 4], 'vec2': [[1, 2], [3, 4], [5, 6]]}";
  3. 	JObject jo = JsonConvert.DeserializeObject<JObject>(jsonStr);
  4. 	print("vec1=" + GetJArrayString((JArray) jo["vec1"]) + ", vec2=" + GetJArrayString2((JArray) jo["vec2"]));
  5. }

        说明： GetJArrayString 方法见 2 1）节，GetJArrayString2 方法见 3 1）节。

        2）解析为封装类

  1. class VecInfo {
  2. 	public int[] vec1;
  3. 	public int[][] vec2;
  4. }
  5.  
  6. private void ParseJson() { // "数组字典"混合解析(封装类)
  7. 	string jsonStr = "{'vec1': [1, 2, 3, 4], 'vec2': [[1, 2], [3, 4], [5, 6]]}";
  8. 	VecInfo vecInfo = JsonConvert.DeserializeObject<VecInfo>(jsonStr);
  9. 	print("vec1=" + GetArrString(vecInfo.vec1) + ", vec2=" + GetArrString2(vecInfo.vec2));
  10. }

        说明： GetArrString 方法见 2 2）节，GetArrString2 方法见 3 2）节。

5 解析字典数组

        1）解析为 JArray-JObject

  1. private void ParseJson() { // "字典数组"混合解析(JArray-JObject)
  2. 	string jsonStr = "[{'name': 'xiaomin', 'sex': 'male', 'age': 23}, {'name': 'xiaohong', 'sex': 'female', 'age': 21}]";
  3. 	JArray ja = JsonConvert.DeserializeObject<JArray>(jsonStr);
  4. 	string str = "[";
  5. 	if (ja.Count > 0) {
  6. 		str += "{name: " + ja[0]["name"] + ", sex: " + ja[0]["sex"] + ", age: " + ja[0]["age"] + "}";
  7. 	}
  8. 	for (int i = 1; i < ja.Count; i++) {
  9. 		str += ", {name: " + ja[i]["name"] + ", sex: " + ja[i]["sex"] + ", age: " + ja[i]["age"] + "}";
  10. 	}
  11. 	str += "]";
  12. 	print(str);
  13. }

         2）解析为数组封装类

  1. private void ParseJson() { // "字典数组"混合解析(Student[])
  2. 	string jsonStr = "[{'name': 'xiaomin', 'sex': 'male', 'age': 23}, {'name': 'xiaohong', 'sex': 'female', 'age': 21}]";
  3. 	Student[] stus = JsonConvert.DeserializeObject<Student[]>(jsonStr);
  4. 	print(GetStudentArrString(stus));
  5. }
  6.  
  7. private string GetStudentArrString(Student[] stus) {
  8. 	string str = "[";
  9. 	if (stus != null && stus.Length > 0) {
  10. 		str += stus[0];
  11. 	}
  12. 	for (int i = 1; i < stus.Length; i++) {
  13. 		str += ", " + stus[i];
  14. 	}
  15. 	return str + "]";
  16. }

        说明：Student 类见 1 3）节。

         3）解析为列表封装类

  1. private void ParseJson() { // "字典数组"混合解析(List<Student>)
  2. 	string jsonStr = "[{'name': 'xiaomin', 'sex': 'male', 'age': 23}, {'name': 'xiaohong', 'sex': 'female', 'age': 21}]";
  3. 	List<Student> list = JsonConvert.DeserializeObject<List<Student>>(jsonStr);
  4. 	print(GetStudentListString(list));
  5. }
  6.  
  7. private string GetStudentListString(List<Student> list) {
  8. 	string str = "[";
  9. 	if (list != null && list.Count > 0) {
  10. 		str += list[0];
  11. 	}
  12. 	for (int i = 1; i < list.Count; i++) {
  13. 		str += ", " + list[i];
  14. 	}
  15. 	return str + "]";
  16. }

6 解析 Vector3 点集

         1）字典格式点

  1. private void ParseJson() {
  2. 	string jsonStr = "[{'x': 1, 'y': 2, 'z': 3}, {'x': 4, 'y': 5, 'z': 6}, {'x': 7, 'y': 8, 'z': 9}]";
  3. 	Vector3[] points = JsonConvert.DeserializeObject<Vector3[]>(jsonStr);
  4. 	print(GetVectorString(points));
  5. }
  6.  
  7. private string GetVectorString(Vector3[] points) {
  8. 	string str = "[";
  9. 	if (points != null && points.Length > 0) {
  10. 		str += points[0];
  11. 	}
  12. 	for (int i = 1; i < points.Length; i++) {
  13. 		str += ", " + points[i];
  14. 	}
  15. 	return str + "]";
  16. }

        2）数组格式点

  1. private void ParseJson() {
  2. 	string jsonStr = "[[1, 2, 3], [4, 5, 6], [7, 8, 9]]";
  3. 	float[][] arr = JsonConvert.DeserializeObject<float[][]>(jsonStr);
  4. 	Vector3[] points = new Vector3[arr.Length];
  5. 	for(int i = 0; i < arr.Length; i++) {
  6. 		points[i] = new Vector3(arr[i][0], arr[i][1], arr[i][2]);
  7. 	}
  8. 	print(GetVectorString(points));
  9. }

        说明：GetVectorString 方法同第 1）节。 

7 从文件中解析

  1. private void ParseJson() { // 解析为JObject
  2. 	string jsonStr = File.ReadAllText("Assets/Scenes/Student.json", Encoding.UTF8);
  3. 	JObject jo = JsonConvert.DeserializeObject<JObject>(jsonStr);
  4. 	print("name=" + jo["name"] + ", sex=" + jo["sex"] + ", age=" + jo["age"]);
  5. }

        说明：File 和  Encoding.UTF8 需要引入命名空间 System.IO、System.Text。

        Student.json

{'name': 'zhangsan', 'sex': 'male', 'age': 23}