java中DynamoDB本地的CRUD操作

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

String tableName = "YourTableName";
List<AttributeDefinition> attributeDefinitions = Arrays.asList(
    new AttributeDefinition("id", ScalarAttributeType.N)
);
List<KeySchemaElement> keySchema = Arrays.asList(
    new KeySchemaElement("id", KeyType.HASH)
);
ProvisionedThroughput provisionedThroughput = new ProvisionedThroughput(10L, 10L);

CreateTableRequest createTableRequest = new CreateTableRequest()
    .withTableName(tableName)
    .withAttributeDefinitions(attributeDefinitions)
    .withKeySchema(keySchema)
    .withProvisionedThroughput(provisionedThroughput);

Table table = dynamoDB.createTable(createTableRequest);
table.waitForActive();

Item item = new Item()
    .withPrimaryKey("id", 1)
    .withString("name", "John Doe")
    .withInt("age", 25);

table.putItem(item);

GetItemSpec getItemSpec = new GetItemSpec()
    .withPrimaryKey("id", 1);

Item item = table.getItem(getItemSpec);
System.out.println(item.toJSONPretty());

UpdateItemSpec updateItemSpec = new UpdateItemSpec()
    .withPrimaryKey("id", 1)
    .withUpdateExpression("set #name = :name")
    .withNameMap(new NameMap().with("#name", "name"))
    .withValueMap(new ValueMap().with(":name", "Jane Doe"));

UpdateItemOutcome outcome = table.updateItem(updateItemSpec);

DeleteItemSpec deleteItemSpec = new DeleteItemSpec()
    .withPrimaryKey("id", 1);

DeleteItemOutcome outcome = table.deleteItem(deleteItemSpec);