feat(bszx): 合成图片时支持中文显示

- 在 BszxBmServiceImpl 和 BszxPayServiceImpl 中添加中文支持
- 新增 createChineseFont 方法创建支持中文的字体
- 在图片合成时使用中文字体添加文本元素- 添加 JacksonTest 类进行序列化测试

src/test/java/com/gxwebsoft/JacksonTest.java

@@ -0,0 +1,60 @@
+package com.gxwebsoft;
+
+import com.fasterxml.jackson.annotation.JsonFormat;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
+import com.gxwebsoft.cms.entity.CmsWebsite;
+import lombok.Data;
+import org.junit.jupiter.api.Test;
+
+import java.time.LocalDateTime;
+
+/**
+ * Jackson序列化测试
+ */
+public class JacksonTest {
+
+    @Test
+    public void testLocalDateTimeSerialization() throws Exception {
+        // 创建ObjectMapper并注册JavaTimeModule
+        ObjectMapper mapper = new ObjectMapper();
+        mapper.registerModule(new JavaTimeModule());
+        
+        // 创建测试对象
+        TestObject testObj = new TestObject();
+        testObj.setName("测试");
+        testObj.setExpirationTime(LocalDateTime.now());
+        
+        // 序列化
+        String json = mapper.writeValueAsString(testObj);
+        System.out.println("序列化结果: " + json);
+        
+        // 反序列化
+        TestObject result = mapper.readValue(json, TestObject.class);
+        System.out.println("反序列化结果: " + result);
+    }
+    
+    @Test
+    public void testCmsWebsiteSerialization() throws Exception {
+        // 创建ObjectMapper并注册JavaTimeModule
+        ObjectMapper mapper = new ObjectMapper();
+        mapper.registerModule(new JavaTimeModule());
+        
+        // 创建CmsWebsite对象
+        CmsWebsite website = new CmsWebsite();
+        website.setWebsiteName("测试网站");
+        website.setExpirationTime(LocalDateTime.now());
+        
+        // 序列化
+        String json = mapper.writeValueAsString(website);
+        System.out.println("CmsWebsite序列化结果: " + json);
+    }
+    
+    @Data
+    public static class TestObject {
+        private String name;
+        
+        @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
+        private LocalDateTime expirationTime;
+    }
+}