MyBatis案例五：使用${}参数，进行模糊查询

MyBatis案例五：使用${}参数，进行模糊查询

1. 在DeptMapper接口中添加方法：

public List<Dept> getAllForLike(String dname);

2. 在DeptMapper.xml文件中添加：

<select id="getAllForLike" resultType="com.yy.domain.Dept">
		select * from dept where dname like '%${value}%'
</select>

3.测试类：

	@Test
	public void testGetForLike() throws IOException {
		deptMapper = session.getMapper(DeptMapper.class);
		List<Dept> list = deptMapper.getAllForLike("A");
		System.out.println(list);
	}

4.使用#{}：

<select id="getAllForLike" resultType="com.yy.domain.Dept">
		select * from dept where dname like #{value}
</select>

	@Test
	public void testGetForLike() throws IOException {
		deptMapper = session.getMapper(DeptMapper.class);
		List<Dept> list = deptMapper.getAllForLike("%A%");
		System.out.println(list);
	}