Spring jdcbtemplate实例

package com.example.modle;

public class Student {

private int id;
private String name;
private int age;
public Student(int id, String name, int age) {
super();
this.id = id;
this.name = name;
this.age = age;
}
public int getId() {
return id;
}
public Student() {
super();
}
public Student(String name, int age) {
super();
this.name = name;
this.age = age;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
@Override
public String toString() {
return "Student [id=" + id + ", name=" + name + ", age=" + age + "]";
}

}

package com.example.Dao;

import java.util.List;
import com.example.modle.Student;

public interface StudentDao {
public int addStudent(Student student);

public int deleteStudent(int id);

public int updateStudent(Student student);

public List<Student> findStudent();

}

package com.example.Dao;

import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;

import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.RowCallbackHandler;

import com.example.modle.Student;

public class StudentDaoImpl implements StudentDao{

private JdbcTemplate jdbcTemplate;
public void setJdbcTemplate(JdbcTemplate jdbcTemplate) {
this.jdbcTemplate = jdbcTemplate;
}

@Override
public int addStudent(Student student) {
String sql = "insert into student values(?,?,?)";
Object []params = new Object[]{student.getId(),student.getName(),student.getAge()};
return jdbcTemplate.update(sql, params);
}

@Override
public int deleteStudent(int id) {
String sql = "delete from student where id=?";
Object []params = new Object[]{id};
return jdbcTemplate.update(sql, params);
}

@Override
public int updateStudent(Student student) {
String sql = "update student set name=?,age=? where id=?";
Object []params = new Object[]{student.getName(),student.getAge(),student.getId()};
return jdbcTemplate.update(sql, params);
}

@Override
public List<Student> findStudent() {
String sql = "select * from student";
final List<Student> studentList = new ArrayList<Student>();
jdbcTemplate.query(sql, new RowCallbackHandler() {

@Override
public void processRow(ResultSet rs) throws SQLException {
Student student = new Student();
student.setId(rs.getInt("id"));
student.setName(rs.getString("name"));
student.setAge(rs.getInt("age"));
studentList.add(student);
}
});
return studentList;
}
}

package com.example.service;

import java.util.List;

import com.example.modle.Student;

public interface StudentService {
public int addStudent(Student student);

public int deleteStudent(int id);

public int updateStudent(Student student);

public List<Student> findStudent();
}

package com.example.service;

import java.util.List;

import com.example.Dao.StudentDao;
import com.example.modle.Student;

public class StudentServiceImpl implements StudentService{

private StudentDao studentDao;

public void setStudentDao(StudentDao studentDao) {
this.studentDao = studentDao;
}

@Override
public int addStudent(Student student) {
return studentDao.addStudent(student);

}

@Override
public int deleteStudent(int id) {
return studentDao.deleteStudent(id);

}

@Override
public int updateStudent(Student student) {
return studentDao.updateStudent(student);

}

@Override
public List<Student> findStudent() {
// TODO Auto-generated method stub
return studentDao.findStudent();
}

}

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <!-- 数据源 -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">
<property name="driverClassName" value="${jdbc.driverClassName}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
</bean>

<context:property-placeholder location="jdbc.properties" />

<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
<property name="dataSource" ref="dataSource"></property>
</bean>

<bean id="studentDao" class="com.example.Dao.StudentDaoImpl">
<property name="jdbcTemplate" ref="jdbcTemplate"></property>
</bean>

<bean id="studentService" class="com.example.service.StudentServiceImpl">
<property name="studentDao" ref="studentDao"></property>
</bean>

</beans>

package com.example.test;

import java.util.List;

import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.example.modle.Student;
import com.example.service.StudentService;

public class test {
@Test
public void addtest(){
ApplicationContext ac = new ClassPathXmlApplicationContext("beans.xml");
StudentService studentService = (StudentService) ac.getBean("studentService");
int i = studentService.addStudent(new Student(1,"张三", 20));
if (i == 1) {
System.out.println("添加成功");
}
}
@Test
public void updatetest(){
ApplicationContext ac = new ClassPathXmlApplicationContext("beans.xml");
StudentService studentService = (StudentService) ac.getBean("studentService");
int i = studentService.updateStudent(new Student(2,"张三2", 20));
if (i == 1) {
System.out.println("修改成功");
}
}
@Test
public void deletetest(){
ApplicationContext ac = new ClassPathXmlApplicationContext("beans.xml");
StudentService studentService = (StudentService) ac.getBean("studentService");
int i = studentService.deleteStudent(1);
if (i == 1) {
System.out.println("删除成功");
}
}
@Test
public void findalltest(){
ApplicationContext ac = new ClassPathXmlApplicationContext("beans.xml");
StudentService studentService = (StudentService) ac.getBean("studentService");
List<Student> s = studentService.findStudent();
if (s != null) {
System.out.println("查找成功");
for (Student student : s) {
System.out.println(student);
}
}
}

}

jdbc.driverClassName=oracle.jdbc.driver.OracleDriver
jdbc.url=jdbc:oracle:thin:@127.0.0.1:1521:orcl
jdbc.username=scott
jdbc.password=Ss123457