表結構：

user：id

  name

  age

需求：查詢名字中帶有o的和年齡在10，20歲之間的人

重新寫一個模糊查詢的類 FuzzySearch用來封裝查詢條件

FuzzySearch.java

package cn.limbo.pojo;

/**
 * Created by limbo on 2016/10/26.
 */
public class FuzzySearch {

    private String name;
    private int maxAge;
    private int minAge;

    public FuzzySearch() {
    }

    public FuzzySearch(String name, int maxAge, int minAge) {
        this.name = name;
        this.maxAge = maxAge;
        this.minAge = minAge;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getMaxAge() {
        return maxAge;
    }

    public void setMaxAge(int maxAge) {
        this.maxAge = maxAge;
    }

    public int getMinAge() {
        return minAge;
    }

    public void setMinAge(int minAge) {
        this.minAge = minAge;
    }
}
 

<select id="fuzzyUser" parameterType="FuzzySearch" resultType="User">
        SELECT * FROM users WHERE

        <if test="name != '%null%' ">
            name LIKE #{name} AND
        </if>

        age BETWEEN #{minAge} AND #{maxAge}
    </select>

呼叫：

@Test
    public void testFuzzy(){
        SqlSession sqlSession = MybatisUtils.getSqlSession();
        String statment = "cn.limbo.pojo.userMapper.fuzzyUser";
        String name = null;
        String nameString = "%"+name+"%";
        List<User> users = sqlSession.selectList(statment,new FuzzySearch(nameString,20,10));
        System.out.println(users);
        sqlSession.close();
    }