Spring通過dataSource獲取資料庫的連線測試
阿新 • • 發佈：2019-01-31
配置檔案：
bean-properties.xml
<?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:p="http://www.springframework.org/schema/p"
xmlns:util="http://www.springframework.org/schema/util"
xmlns:context UserDao.java檔案
package com.wh.spring.helloworld.properties;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import javax.sql.DataSource;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.mchange.v2.c3p0.DriverManagerDataSource;
/**
*
result:
14---吳神兵
15---汪澤生
16---朱小狗
17---巫阿平
18---admin
19---李四
20---張三
21---王曉麗
22---趙曉紅
23---汪小雨
24---汪明傑
25---谷小志
26---汪芯蕊
27---江夢妍
28---趙強
29---汪鵬
30---Jones
31---胡明
32---王老五
33---趙四
34---王老七
35---許傑
36---汪鵬煊
37---汪天雪
38---汪皓宇
39---汪憶妍
40---李磊
41---wpfsb
42---汪小菲
43---汪狗
44---
*
*
* */
public class UserDao {
DriverManagerDataSource dataSource2;
DataSource dataSource;
/**
* @return the dataSource
*/
public DataSource getDataSource() {
return dataSource;
}
/**
* @param dataSource the dataSource to set
*/
public void setDataSource(DataSource dataSource) {
this.dataSource = dataSource;
}
public List<User> queryAll() {
Connection conn = null;
PreparedStatement ppst = null;
ResultSet rs = null;
try {
conn = dataSource.getConnection();
ppst = conn.prepareStatement("select * from user");
rs = ppst.executeQuery();
List<User> list = new ArrayList<>();
while (rs.next()) {
User user = new User(rs.getInt(1), rs.getString(2),rs.getString(3),//
rs.getInt(4), rs.getString(5),rs.getString(6),//
rs.getString(7), rs.getString(8),rs.getInt(9),//
rs.getInt(10), rs.getString(11),rs.getString(12));
list.add(user);
}
return list;
} catch (SQLException e) {
e.printStackTrace();
} finally {
try {
rs.close();
ppst.close();
conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
return null;
}
public static void main(String[] args) throws SQLException {
ApplicationContext context = new ClassPathXmlApplicationContext("bean-properties.xml");
UserDao dao = (UserDao) context.getBean("UserDao");
List<User> list = dao.queryAll();
for (User user : list) {
System.out.println(user.getId() + "---" + user.getUsername());
}
}
}
User.java
package com.wh.spring.helloworld.properties;
public class User {
private int id;
private String username;
private String password;
private int gender;
private String remark;
private String bookmarker;
private String study;
private String interest;
private int clazz;
private int experience;
private String labelMarker;
private String recentRead;
public User(int id, String username, String password, int gender, String remark, String bookmarker, String study,
String interest, int clazz, int experience, String labelMarker, String recentRead) {
super();
this.id = id;
this.username = username;
this.password = password;
this.gender = gender;
this.remark = remark;
this.bookmarker = bookmarker;
this.study = study;
this.interest = interest;
this.clazz = clazz;
this.experience = experience;
this.labelMarker = labelMarker;
this.recentRead = recentRead;
}
/* (non-Javadoc)
* @see java.lang.Object#toString()
*/
@Override
public String toString() {
return "User [id=" + id + ", username=" + username + ", password=" + password + ", gender=" + gender
+ ", remark=" + remark + ", bookmarker=" + bookmarker + ", study=" + study + ", interest=" + interest
+ ", clazz=" + clazz + ", experience=" + experience + ", labelMarker=" + labelMarker + ", recentRead="
+ recentRead + "]";
}
/**
* @return the id
*/
public int getId() {
return id;
}
/**
* @param id the id to set
*/
public void setId(int id) {
this.id = id;
}
/**
* @return the username
*/
public String getUsername() {
return username;
}
/**
* @param username the username to set
*/
public void setUsername(String username) {
this.username = username;
}
/**
* @return the password
*/
public String getPassword() {
return password;
}
/**
* @param password the password to set
*/
public void setPassword(String password) {
this.password = password;
}
/**
* @return the gender
*/
public int getGender() {
return gender;
}
/**
* @param gender the gender to set
*/
public void setGender(int gender) {
this.gender = gender;
}
/**
* @return the remark
*/
public String getRemark() {
return remark;
}
/**
* @param remark the remark to set
*/
public void setRemark(String remark) {
this.remark = remark;
}
/**
* @return the bookmarker
*/
public String getBookmarker() {
return bookmarker;
}
/**
* @param bookmarker the bookmarker to set
*/
public void setBookmarker(String bookmarker) {
this.bookmarker = bookmarker;
}
/**
* @return the study
*/
public String getStudy() {
return study;
}
/**
* @param study the study to set
*/
public void setStudy(String study) {
this.study = study;
}
/**
* @return the interest
*/
public String getInterest() {
return interest;
}
/**
* @param interest the interest to set
*/
public void setInterest(String interest) {
this.interest = interest;
}
/**
* @return the clazz
*/
public int getClazz() {
return clazz;
}
/**
* @param clazz the clazz to set
*/
public void setClazz(int clazz) {
this.clazz = clazz;
}
/**
* @return the experience
*/
public int getExperience() {
return experience;
}
/**
* @param experience the experience to set
*/
public void setExperience(int experience) {
this.experience = experience;
}
/**
* @return the labelMarker
*/
public String getLabelMarker() {
return labelMarker;
}
/**
* @param labelMarker the labelMarker to set
*/
public void setLabelMarker(String labelMarker) {
this.labelMarker = labelMarker;
}
/**
* @return the recentRead
*/
public String getRecentRead() {
return recentRead;
}
/**
* @param recentRead the recentRead to set
*/
public void setRecentRead(String recentRead) {
this.recentRead = recentRead;
}
}
db.properties
user=root
password=root
driverclass=com.mysql.jdbc.Driver
jdbcurl=jdbc:mysql://localhost:3306/knowledge
所引用的jar包
