从/到DynamoDB读取/写入Map<String、Object>

AmazonDynamoDB client = AmazonDynamoDBClientBuilder.standard().build();
DynamoDB dynamoDB = new DynamoDB(client);

Map<String, AttributeValue> key = new HashMap<>();
key.put("id", new AttributeValue().withS("exampleId"));

GetItemRequest getItemRequest = new GetItemRequest()
    .withTableName("tableName")
    .withKey(key);

Map<String, AttributeValue> item = client.getItem(getItemRequest).getItem();

// 将Map<String, AttributeValue>转换为Map<String, Object>
Map<String, Object> resultMap = new HashMap<>();
for (Map.Entry<String, AttributeValue> entry : item.entrySet()) {
    resultMap.put(entry.getKey(), entry.getValue().getS());
}

AmazonDynamoDB client = AmazonDynamoDBClientBuilder.standard().build();
DynamoDB dynamoDB = new DynamoDB(client);

Map<String, AttributeValue> item = new HashMap<>();
item.put("id", new AttributeValue().withS("exampleId"));
item.put("name", new AttributeValue().withS("exampleName"));

PutItemRequest putItemRequest = new PutItemRequest()
    .withTableName("tableName")
    .withItem(item);

client.putItem(putItemRequest);