一个查询的方法测试(Junit)通过
放到线程里就不行了 查不到结果 也不报错
本来期待多线程模拟多用户同时访问
Thread :
public void run() {
Integer s = 0;
try {
s = Lee.selectAllAccountCount();
System.out.println(s+"..............."); // 没值 也不报错
} catch (SQLException e) {
e.printStackTrace();
}
}
Junit
@Test
public void threadDb(){
Integer s = 0;
try {
s = Lee.selectAllAccountCount();
System.out.println(s+"..............."); // ----- s 有值,没问题
} catch (SQLException e) {
e.printStackTrace();
}
Tas t;
for (int i = 0; i < 3; i++) {
t= new Tas();
t.start();
}
if(1==1){
t= new Tas();
t.start();
}
}
sqlMap.xml:
select count(*) from Lee
Dao:
public static Integer selectAllLeeCount () throws SQLException {
System.out.println("+++++++++++++");
return (Integer)sqlMapper.queryForObject("selectAllLeeCount");
}