gjh
2 weeks ago
12 changed files with 188 additions and 25 deletions
@ -0,0 +1,32 @@ |
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package org.dromara.platform.domain; |
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public class Attachment { |
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private String url; |
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private String name; |
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// 默认构造函数
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public Attachment() {} |
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// 带参数的构造函数
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public Attachment(String url, String name) { |
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this.url = url; |
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this.name = name; |
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} |
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// Getter 和 Setter 方法
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public String getUrl() { |
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return url; |
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} |
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public void setUrl(String url) { |
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this.url = url; |
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} |
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public String getName() { |
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return name; |
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} |
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public void setName(String name) { |
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this.name = name; |
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} |
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} |
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@ -0,0 +1,75 @@ |
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package org.dromara.platform.domain; |
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import com.fasterxml.jackson.core.JsonProcessingException; |
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import com.fasterxml.jackson.core.type.TypeReference; |
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import com.fasterxml.jackson.databind.ObjectMapper; |
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import java.util.List; |
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public class AttachmentSerializer { |
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private final ObjectMapper objectMapper = new ObjectMapper(); |
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/** |
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* 将List<Attachment>序列化为JSON字符串。 |
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* |
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* @param attachment 包含附件信息的列表 |
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* @return 序列化后的JSON字符串 |
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*/ |
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public String serializeAttachments(List<Attachment> attachment) { |
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try { |
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// 使用ObjectMapper将List<Attachment>转换为JSON字符串
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return objectMapper.writeValueAsString(attachment); |
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} catch (JsonProcessingException e) { |
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// 处理可能发生的异常
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e.printStackTrace(); |
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// 根据实际情况决定如何处理错误，这里简单地返回null
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return null; |
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} |
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} |
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/** |
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* 将JSON字符串反序列化为List<Attachment>。 |
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* |
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* @param attachmentJson JSON格式的字符串 |
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* @return 反序列化后的List<Attachment> |
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*/ |
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public List<Attachment> deserializeAttachments(String attachmentJson) { |
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try { |
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// 使用ObjectMapper将JSON字符串转换回List<Attachment>
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return objectMapper.readValue(attachmentJson, new TypeReference<List<Attachment>>() {}); |
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} catch (JsonProcessingException e) { |
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// 处理可能发生的异常
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e.printStackTrace(); |
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// 根据实际情况决定如何处理错误，这里简单地返回null
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return null; |
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} |
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} |
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// 测试方法
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public static void main(String[] args) { |
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AttachmentSerializer serializer = new AttachmentSerializer(); |
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// 创建一些模拟数据
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List<Attachment> attachmentList = List.of( |
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new Attachment("http://example.com/file1.pdf", "File One"), |
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new Attachment("http://example.com/file2.docx", "File Two") |
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); |
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// 序列化
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String serialized = serializer.serializeAttachments(attachmentList); |
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System.out.println(serialized); // 输出序列化后的JSON字符串
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// 反序列化
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List<Attachment> deserializedAttachments = serializer.deserializeAttachments(serialized); |
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System.out.println("Deserialized:"); |
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if (deserializedAttachments != null) { |
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for (Attachment attachment : deserializedAttachments) { |
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System.out.println("URL: " + attachment.getUrl() + ", Name: " + attachment.getName()); |
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} |
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} else { |
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System.out.println("Failed to deserialize the JSON string."); |
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} |
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} |
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} |
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