mybatis 使用selectkey 注解 应用

最近一直被mybatis 注解 selectkey 所迷惑，insert后的回的key并不是在原对象中返回 而是新new 了一个对象返回，经过多次尝试 成功了 和大家分享一下

/**
 * @file_name PRODUCTLISTMapper.java   
 * @date 2012-5-20 下午10:59:29
 */
package com.work.company.dao;

import java.util.List;

import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.SelectKey;
import org.apache.ibatis.annotations.SelectProvider;
import org.apache.ibatis.annotations.Update;
import org.apache.ibatis.mapping.StatementType;
import org.springframework.stereotype.Repository;

import com.work.company.entity.ProductEntry;

/**
 * @author chedejun
 * @Email <a href="mailto:[e-mail]">[e-mail]</a>
 * @date 2012-5-20 下午10:59:29
 */
@Repository
interface IProductListMapper {

	/**
	 * 
	 * 
	 * 添加
	 * 
	 * @param PRODUCTLIST
	 * @return KEY
	 */
	@Insert("INSERT INTO PRODUCTLIST(PRODUCTNAME,IMAGEURL,DESCRIBES,CATALOGID) "
			+ "VALUES(#{PRODUCT.productName},#{PRODUCT.imageUrl},"
			+ "#{PRODUCT.describes},#{PRODUCT.catalogId})")
	@SelectKey(before=false,keyProperty="PRODUCT.id",resultType=Integer.class,statementType=StatementType.STATEMENT,statement="SELECT LAST_INSERT_ID() AS id")
	int insertProduct(final @Param("PRODUCT")ProductEntry product);

	/**
	 * 
	 * 删除
	 * 
	 * @param id
	 * @return effect rows
	 */
	@Delete("DELETE FROM PRODUCTLIST WHERE ID=#{ID}")
	int delProduct(@Param("ID") final int id);

	/**
	 * 
	 * 
	 * @param productID
	 * @param seriesId
	 * @return List<PRODUCTLIST>
	 */

	@SelectProvider(type = ProductProvider.class, method = "getProductSql")
	List<ProductEntry> selProductListById(
			@Param("ID") final Integer id,
			@Param("CATALOGID") final Integer catalogId);
	/**
	 *
	 *
	 *@param PRODUCTLIST
	 *@return effect row
	 */
	@Update("UPDATE PRODUCTLIST SET PRODUCTNAME=#{PRODUCT.productName},IMAGEURL=#{PRODUCT.imageUrl}," +
			"DESCRIBES=#{PRODUCT.describes},CATALOGID=#{PRODUCT.catalogId} " +
			"WHERE ID=#{PRODUCT.id}")
	int updateProduct(@Param("PRODUCT") final ProductEntry product);

}

测试

/**
	 * 
	 * 
	 * 添加
	 * 
	 * @param productDetail
	 * @return KEY
	 */
	@Test
	public void insertProductDetail(){
		final CatalogEntry catalog=new CatalogEntry();
		catalog.setCatalogImage("adfadsf");
		catalog.setCatalogName("aaaaa");
		final ProductEntry productDetail=new ProductEntry();
		productListMapper.insertCatalog(catalog);
		productDetail.setCatalogId(catalog.getId());
		productDetailMapper.insertProduct(productDetail);
		System.out.println(productDetail.getId());
	}

另一种方式 官方帮助文档上基于xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper    
    PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"    
    "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
 
 <mapper namespace="com.work.company.dao.ICatalogListMapper">
 	<insert id="insertCatalog" parameterType="com.work.company.entity.CatalogEntry">
 		<selectKey keyProperty="id" order="AFTER" resultType="int">
 			SELECT LAST_INSERT_ID() AS id
 		</selectKey>
 		INSERT INTO CATALOGLIST(CATALOGNAME,CATALOGIMAGE) 
 		VALUES
	   	(#{catalogName},#{catalogImage})
 	</insert>
 
 </mapper>

/**
 * @file_name IProductListMapper.java   
 * @date 2012-5-20 下午8:27:53
 */
package com.work.company.dao;

import java.util.List;

import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.SelectProvider;
import org.apache.ibatis.annotations.Update;
import org.springframework.stereotype.Repository;
import com.work.company.entity.CatalogEntry;

/**
 * @author chedejun
 * @Email <a href="mailto:[e-mail]">[e-mail]</a>
 * @date 2012-5-20 下午8:27:53
 */
@Repository
interface ICatalogListMapper {


	/**
	 * 获取产品系列
	 * 
	 * @param id
	 *            系列编号
	 * 
	 * @return List<ProductList>
	 */
	@SelectProvider(type = ProductProvider.class,method = "getCatalogSql")
	List<CatalogEntry> selCatalogList(@Param("ID") final Integer  id);

	/**
	 * 添加系列
	 * 
	 * @param productList
	 * @return key
	 * 
	 */
	int insertCatalog(final CatalogEntry catalog);
	
	//@Insert("INSERT INTO CATALOGLIST(CATALOGNAME,CATALOGIMAGE) VALUES"
	//		+ " (#{CATALOG.catalogName},#{CATALOG.catalogImage})")
	//@SelectKey(before=false,keyProperty="id",statementType=StatementType.STATEMENT, resultType = Integer.class, statement =  "SELECT LAST_INSERT_ID() AS id" )
	
	
	
	

	/**
	 * 删除系列
	 * 
	 * @param id
	 *            key
	 * @return 影响行数
	 */
	@Delete("DELETE FROM CATALOGLIST WHERE ID=#{ID}")
	int  delCatalog(@Param("ID") final Integer id);

	/**
	 * 更新
	 * 
	 * @param productList
	 * @return 影响行数
	 */
	@Update("UPDATE CATALOGLIST SET CATALOGNAME=#{CATALOG.catalogName},CATALOGIMAGE=#{CATALOG.catalogImage} "
			+ "WHERE ID=#{CATALOG.id}")
	int updateCatalog(@Param("CATALOG") final CatalogEntry catalog);
}

我错误的原因 在于 @Parm 造成的