package com.ssm.test;
public class DynamicDataSourceHolder {
/**
* 注意：数据源标识保存在线程变量中，避免多线程操作数据源时互相干扰
*/
private static final ThreadLocal THREAD_DATA_SOURCE = new ThreadLocal();
public static String getDataSource() {
return THREAD_DATA_SOURCE.get();
}
public static void setDataSource(String dataSource) {
THREAD_DATA_SOURCE.set(dataSource);
}
public static void clearDataSource() {
THREAD_DATA_SOURCE.remove();
}
}
UserService.java
package com.ssm.service;
import java.util.List;
import com.ssm.model.User;
public interface UserService {
public boolean login(String username,String password) throws Exception;
public List findAll() throws Exception;
}
UserServiceImpl.java
package com.ssm.service.impl;
import org.apache.ibatis.annotations.Param;
import org.springframework.beans.factory.annotation.Autowired;
import com.ssm.dao.IUserDao;
import java.util.List;
import org.springframework.stereotype.Service;
import com.ssm.model.User;
import com.ssm.service.UserService;
@Service("UserService")
public class UserServiceImpl implements UserService{
/**
* 注入UserMapper接口
*/
@Autowired
IUserDao Mapper;
//登录方法的实现,从jsp页面获取username与password
public boolean login(String username, String password) {
User user = Mapper.selectByName(username);
if (user != null) {
if (user.getUsername().equals(username) && user.getPassword().equals(password))
return true;
}
return false;
}
public List findAll() {
// TODO Auto-generated method stub
return Mapper.findAll();
}
}
User.java
package com.ssm.model;
/**
* 描述:登录用户实体类
* 创建人:CNSTT
* 时间:2018年7月18日下午18:06:32
* @version
*/
public class User {
private int id; //主键
private String username; //用户名
private String password; //密码
private int role; //权限
private int roleid; //权限id
private String rolename; //权限英文
private String description; //权限描述
private String task; //工作任务
private String user; //使用人
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public int getRole() {
return role;
}
public void setRole(int role) {
this.role = role;
}
public int getRoleid() {
return roleid;
}
public void setRoleid(int roleid) {
this.roleid = roleid;
}
public String getRolename() {
return rolename;
}
public void setRolename(String rolename) {
this.rolename = rolename;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public String getTask() {
return task;
}
public void setTask(String task) {
this.task = task;
}
public String getUser() {
return user;
}
public void setUser(String user) {
this.user = user;
}
}
IUserDao.java
package com.ssm.dao;
import java.util.List;
import org.apache.ibatis.annotations.Param;
import com.ssm.model.User;
public interface IUserDao {
public User selectById(int id);
public User selectByName(String username);
public List findAll();
}
现实生活中，有些工作是需要团队中成员依次完成的，这就涉及到了一个顺序问题。现在有T1、T2、T3三个工人，如何保证T2在T1执行完后执行，T3在T2执行完后执行？问题分析：首先问题中有三个实体，T1、T2、T3， 因为是多线程编程，所以都要设计成线程类。关键是怎么保证线程能依次执行完呢？
Java实现过程如下：
public class T1 implements Runnabl
hive在使用having count()是，不支持去重计数
hive (default)> select imei from t_test_phonenum where ds=20150701 group by imei having count(distinct phone_num)>1 limit 10;
FAILED: SemanticExcep
转载源：http://blog.sina.com.cn/s/blog_4f925fc30100rx5l.html
mysql -uroot -p
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
[root@centos var]# service mysql
#mq
xdr.mq.url=tcp://192.168.100.15:61618;
import java.io.IOException;
import java.util.Properties;
public class Test {
String conf = "log4j.properties";
private static final
有一个工程，本来运行是正常的，我想把它移植到另一台PC上，结果报：
java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.mobovip.bgr/com.mobovip.bgr.MainActivity}: java.lang.ClassNotFoundException: Didn't f
// 报错如下：
$ git pull origin master
fatal: unable to access 'https://git.xxx.com/': SSL certificate problem: unable to get local issuer ce
rtificate
// 原因：
由于git最新版默认使用ssl安全验证，但是我们是使用的git未设
