FilterAnnotationUtil.javaIs a tool for filtering file notes,The main filtration and two kinds of notes/**///. Call this methodString filterContent(URL url)，URL path to the file
FilterAnnotationUtil.Instance().filterContent(fileUrl)Thanks for Alienero's ideas
ReadWriteLockOfLockSimple，ReadWriteLockCanAccessThese two classes are read and write lock implementation, the former is relatively simple to achieve, the latter is relatively complete，Basically realize the read / write lock can be re entered，Read lock upgrade, write lock degradation and other functions。Of course, the gap is still very large andJDK，Just to provide you with a learning idea。readwritelock.examplePackage is an example.
public void run() {
if (!isWrite){
readWrite.readLock();
try {
Thread.currentThread().sleep(5000);
} catch (InterruptedException e) {
e.printStackTrace();
}
readWrite.unReadLock();
}else{
readWrite.writeLock();
try {
Thread.currentThread().sleep(3000);
} catch (InterruptedException e) {
e.printStackTrace();
}
readWrite.unWriterLock();
}
} python-db.pyIs a package ofSQLtools.Use it(see below)
from DBUtils.PooledDB import PooledDB
#CRUDExceptSelect Can execute SQL CRUD
#The last parameter indicates whether is batch，the first is your SQL,the second is your value arrays
k=[['wo222ijoi'],['1231231']]
print CRUDExceptSelect(sql='insert into user (name) values(?)',kw=k,batch=True)