第一种方法直接根据是否是泛型获取

1. public static Type[] getMethodReturnTypes(Method method) {
2. List<Type> typeList = new ArrayList<>();
3. Type type = method.getGenericReturnType(); //判断是否带有泛型
5. if (type instanceof ParameterizedType) {
6. typeList.add(((ParameterizedType) type).getRawType());
7. Type[] actualTypeArguments = ((ParameterizedType) type).getActualTypeArguments();
8. while (actualTypeArguments.length > 0) {
9. type = actualTypeArguments[0];
10. if (type instanceof ParameterizedType) {
11. typeList.add(((ParameterizedType) type).getRawType());
12. actualTypeArguments = ((ParameterizedType) type).getActualTypeArguments();
13. } else {
14. typeList.add(type);
15. break;
16. }
17. }
18. } else {
19. typeList.add(type);
20. }
21. return typeList.toArray(new Type[]{});
22. }

第二种方法 截取字符串 反射获取具体的类

1. public static Type[] getMethodReturnTypes(Method method) {
2. String generisInfo = method.toGenericString().split(" ")[1];
3. if (!generisInfo.equals("void")) {
4. generisInfo = generisInfo.replace(">", "");
5. String[] arr = generisInfo.split("<");
6. for (String s : arr) {
7. try {
8. Class<?> clazz = Class.forName(s);
9. list.add(clazz);
10. } catch (Exception ex) {
11. throw new RuntimeException(ex);
12. }
13. }
14. }
15. return list.toArray(new Type[]{});
16. }

字符串转换成对象 支持泛型，列表等

1. /**
2. * 字符串转换成对象 支持多级转换以及泛型等 比如 UCRoot<List<Hospital>> 、List<Hospital> 等
3. * eg：
4. *
5. * @param jsonStr
6. * @param types
7. * @return
8. */
9. public static Object parseObject(String jsonStr, Type[] types) {
10. if (isBlank(jsonStr) || ArrayUtils.isEmpty(types)) {
11. return null;
12. }
13. if (types.length == 1) {
14. if (jsonStr.startsWith("[{")) {
15. return JSONObject.parseArray(jsonStr, (Class) types[0]);
16. } else {
17. return JSONObject.parseObject(jsonStr, types[0]);
18. }
19. }
21. ParameterizedTypeImpl beforeType = null;
22. if (types != null && types.length > 0) {
23. for (int i = types.length - 1; i > 0; i--) {
24. beforeType = new ParameterizedTypeImpl(new Type[]{beforeType == null ? types[i] : beforeType}, null, types[i - 1]);
25. }
26. }
27. return JSONObject.parseObject(jsonStr, beforeType);
28. }