springJDBC中NamedParameterJdbcTemplate和JdbcTempl...

public class CopyOfStudentDaoImpl implements StudentDao {

private JdbcTemplate jdbcTemplate;

private NamedParameterJdbcTemplate namedParameterJdbcTemplate;

public void setDataSource(DataSource dataSource) {

System.out.println(dataSource);

jdbcTemplate = new JdbcTemplate(dataSource);

namedParameterJdbcTemplate = new NamedParameterJdbcTemplate(dataSource);

System.out.println(namedParameterJdbcTemplate);

}

public Cource StudentbyId(String id) {

String sql = "select Tstudent.studentid,Tstudent.username,Tstudent.password,Tstudent.address,course.studentid,course.courseid,course.cName from course join Tstudent on course.studentid=Tstudent.studentid and course.studentid = ? ";

Cource cource=jdbcTemplate.queryForObject(sql, new BeanPropertyRowMapper<Cource>(Cource.class), id);

return cource;

}

public int addStudent(Student student) {

String sql = "insert into Tstudent (username , password , address ,time) values ( ? , ? , ? , ?)";

return jdbcTemplate.update(sql, new BeanPropertyRowMapper<Student>(Student.class));

}

public int deleteStudent(String id) {

String sql = "delete from Tstudent where studentid = ? ";

return jdbcTemplate.update(sql, id);

}

public List<Student> queryStudent() {

String sql = "select * from Tstudent";

List<Student> list=jdbcTemplate.query(sql, new BeanPropertyRowMapper<Student>(Student.class));

return list;

}

public int updateStudent(Student student) {

String sql = "update Tstudent set username = ? , password = ? , address = ? where studentid = ? ";

return jdbcTemplate.update(sql, new BeanPropertyRowMapper<Student>(Student.class));

}

public int count() {

String sql = "select count(*) from Tstudent";

return jdbcTemplate.queryForInt(sql);

}

public class StudentDaoImpl implements StudentDao {

private JdbcTemplate jdbcTemplate;

private NamedParameterJdbcTemplate namedParameterJdbcTemplate;

public void setDataSource(DataSource dataSource) {

jdbcTemplate = new JdbcTemplate(dataSource);

namedParameterJdbcTemplate = new NamedParameterJdbcTemplate(dataSource);

}

public Cource StudentbyId(String id) {

String sql = "select c.studentid ,c.cName ,c.courseid ,t.username,t.password from course as c join "

+ " Tstudent as t on c.studentid = t.studentid and c.studentid= ? ";

return jdbcTemplate.queryForObject(sql,

new BeanPropertyRowMapper<Cource>(Cource.class), id);

}

public int addStudent( final Student student) {

int result = 0;

final String sql = "insert into Tstudent (username , password , address , time) values ( ? , ? , ? , ?)";

KeyHolder holder = new GeneratedKeyHolder();

result = namedParameterJdbcTemplate.update(sql,

new BeanPropertySqlParameterSource(student), holder);

System.out.println(holder.getKey().intValue());

return result;

}

public int deleteStudent(String id) {

int result = 0;

String sql = "delete from Tstudent where studentid =:id ";

Map<String, String> map = new HashMap<String, String>();

map.put("id", id);

result = namedParameterJdbcTemplate.update(sql, map);

return result;

}

public List<Student> queryStudent() {

String sql = "select * from Tstudent";

RowMapper<Student> mapper = new BeanPropertyRowMapper<Student>(

Student.class);

List<Student> list = jdbcTemplate.query(sql, mapper);

return list;

}

public int updateStudent(Student student) {

int result = 0;

String sql = "update Tstudent set username =:username , password =:password , address =:address where studentid =:studentid";

result = namedParameterJdbcTemplate.update(sql,new BeanPropertySqlParameterSource(student));

return result;

}

public int count() {

String sql = "select count(*) from Tstudent";

return namedParameterJdbcTemplate.getJdbcOperations().queryForInt(sql);

}

}