SpringJunit4的使用

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mavne引入：

<dependency><groupId>org.springframework</groupId><artifactId>spring-test</artifactId><version>3.1.1.RELEASE</version></dependency>

代码实现：

package study.mybatis;import java.util.HashMap;import java.util.List;import java.util.Map;import java.util.Random;import org.apache.ibatis.session.RowBounds;import org.junit.Before;import org.junit.Test;import org.junit.runner.RunWith;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.test.context.ContextConfiguration;import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;import study.mybatis.dao.StudentMapper;import study.mybatis.domain.Student;@RunWith(SpringJUnit4ClassRunner.class)@ContextConfiguration("file:src/main/resources/spring/appContext.xml")public class MybatisSpring {    @Autowired    StudentMapper studentMapper;    Student student;    @Before    public void init(){        student=new Student(311,"tanliu"+new Random().nextInt(500),1);     }        public void testSpring() {          System.out.println(studentMapper.getClass());    }                public void addStudent(){        student=new Student(new Random().nextInt(500),"tanliu"+new Random().nextInt(500),1);         System.out.println(studentMapper.insert(student));    }        public void updataStudent(){        studentMapper.updateByPrimaryKey(student);    }    public void delectStudent(){        studentMapper.deleteByPrimaryKey(446);    }            public void selectStudent(){        Student student = studentMapper.selectByPrimaryKey(311);        System.out.println(student);    }        public void selectStudentList(){        Map<String, Object> params=new HashMap<String, Object>();        params.put("cid", 1);        List<Student> students = studentMapper.selectList(params);        System.out.println(students);    }    /**     * 带分页的     */    @Test    public void selectStudentWithRowBounds(){        Map<String, Object> params=new HashMap<String, Object>();        params.put("cid", 1);        // 分布的设置        int offset=2;        int limit=3;                    RowBounds rowBounds=new RowBounds(offset, limit);        List<Student> students = studentMapper.selectList(params,rowBounds);        System.out.println(students.size());    }        }

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