From efdb99f8cecc4afb592afad79c761081d5d5cf22 Mon Sep 17 00:00:00 2001
From: lee <4766465@qq.com>
Date: Wed, 18 Dec 2024 13:27:00 +0800
Subject: [PATCH] init
---
xxl-job/xxl-job-admin/src/main/java/com/xxl/job/admin/core/util/JacksonUtil.java | 92 ++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 92 insertions(+), 0 deletions(-)
diff --git a/xxl-job/xxl-job-admin/src/main/java/com/xxl/job/admin/core/util/JacksonUtil.java b/xxl-job/xxl-job-admin/src/main/java/com/xxl/job/admin/core/util/JacksonUtil.java
new file mode 100644
index 0000000..4f4ea3c
--- /dev/null
+++ b/xxl-job/xxl-job-admin/src/main/java/com/xxl/job/admin/core/util/JacksonUtil.java
@@ -0,0 +1,92 @@
+package com.xxl.job.admin.core.util;
+
+import com.fasterxml.jackson.core.JsonGenerationException;
+import com.fasterxml.jackson.core.JsonParseException;
+import com.fasterxml.jackson.databind.JavaType;
+import com.fasterxml.jackson.databind.JsonMappingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+
+/**
+ * Jackson util
+ *
+ * 1、obj need private and set/get；
+ * 2、do not support inner class；
+ *
+ * @author xuxueli 2015-9-25 18:02:56
+ */
+public class JacksonUtil {
+ private static Logger logger = LoggerFactory.getLogger(JacksonUtil.class);
+
+ private final static ObjectMapper objectMapper = new ObjectMapper();
+ public static ObjectMapper getInstance() {
+ return objectMapper;
+ }
+
+ /**
+ * bean、array、List、Map --> json
+ *
+ * @param obj
+ * @return json string
+ * @throws Exception
+ */
+ public static String writeValueAsString(Object obj) {
+ try {
+ return getInstance().writeValueAsString(obj);
+ } catch (JsonGenerationException e) {
+ logger.error(e.getMessage(), e);
+ } catch (JsonMappingException e) {
+ logger.error(e.getMessage(), e);
+ } catch (IOException e) {
+ logger.error(e.getMessage(), e);
+ }
+ return null;
+ }
+
+ /**
+ * string --> bean、Map、List(array)
+ *
+ * @param jsonStr
+ * @param clazz
+ * @return obj
+ * @throws Exception
+ */
+ public static <T> T readValue(String jsonStr, Class<T> clazz) {
+ try {
+ return getInstance().readValue(jsonStr, clazz);
+ } catch (JsonParseException e) {
+ logger.error(e.getMessage(), e);
+ } catch (JsonMappingException e) {
+ logger.error(e.getMessage(), e);
+ } catch (IOException e) {
+ logger.error(e.getMessage(), e);
+ }
+ return null;
+ }
+
+ /**
+ * string --> List<Bean>...
+ *
+ * @param jsonStr
+ * @param parametrized
+ * @param parameterClasses
+ * @param <T>
+ * @return
+ */
+ public static <T> T readValue(String jsonStr, Class<?> parametrized, Class<?>... parameterClasses) {
+ try {
+ JavaType javaType = getInstance().getTypeFactory().constructParametricType(parametrized, parameterClasses);
+ return getInstance().readValue(jsonStr, javaType);
+ } catch (JsonParseException e) {
+ logger.error(e.getMessage(), e);
+ } catch (JsonMappingException e) {
+ logger.error(e.getMessage(), e);
+ } catch (IOException e) {
+ logger.error(e.getMessage(), e);
+ }
+ return null;
+ }
+}
--
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