ADD file via upload

JsonUtils.java

@@ -0,0 +1,65 @@
+package com.gk.study.utils;
+
+import com.baomidou.mybatisplus.core.toolkit.ArrayUtils;
+import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.springframework.util.StringUtils;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class JsonUtils {
+    private static final ObjectMapper objectMapper = new ObjectMapper();
+
+    public static String toJsonString(Object object) {
+        try {
+            return objectMapper.writeValueAsString(object);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    public static <T> T parseObject(String text, Class<T> clazz) {
+        if (StringUtils.isEmpty(text)) {
+            return null;
+        }
+        try {
+            return objectMapper.readValue(text, clazz);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    public static <T> T parseObject(byte[] bytes, Class<T> clazz) {
+        if (bytes == null || bytes.length <= 0) {
+            return null;
+        }
+        try {
+            return objectMapper.readValue(bytes, clazz);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    public static <T> T parseObject(String text, TypeReference<T> typeReference) {
+        try {
+            return objectMapper.readValue(text, typeReference);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    public static <T> List<T> parseArray(String text, Class<T> clazz) {
+        if (StringUtils.isEmpty(text)) {
+            return new ArrayList<>();
+        }
+        try {
+            return objectMapper.readValue(text, objectMapper.getTypeFactory().constructCollectionType(List.class, clazz));
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+}
+
+