★★★"); } private boolean tryLock() { SetParams setParams = new SetParams(); setParams.ex...如果是停机,不是 kill -9,也不是断电,这样似乎可以去做一些编码去释放锁,可以参考 JVM的钩子、Dubbo的优雅停机、或者 linux进程级通信技术来做这件事情。...setParams = new SetParams(); setParams.ex(1); // 超时时间1s setParams.nx(); // nx String response...setParams = new SetParams(); setParams.ex(1); // 超时时间1s setParams.nx(); // nx String response...setParams = new SetParams(); setParams.ex(1); // 超时时间1s setParams.nx(); // nx String response
BitmapFactory.Options options_setParams = new BitmapFactory.Options(); options_setParams.inDensity...= 320; options_setParams.inTargetDensity = 160; Bitmap bitmap_setParams = BitmapFactory.decodeResource...(getResources(), R.mipmap.aaa, options_setParams); Log.i(TAG, "bitmap_setParams:ByteCount = "...+ bitmap_setParams.getByteCount() + ":::bitmap_setParams:AllocationByteCount = " + bitmap_setParams.getAllocationByteCount...()); Log.i(TAG, "width:" + bitmap_setParams.getWidth() + ":::height:" + bitmap_setParams.getHeight
配置项 $conf=array( 'class'=>'User', 'newParams'=>array('name'=>'taoshihan'), 'setParams...public function getAction(){ $obj=$this->getObject($this->conf['class'],$this->conf['setParams...'newParams']); return $obj; } public function getObject($class, $setParams...empty($setParams)) { foreach ($setParams as $k => $v) {
'正在编辑' : '编辑完成'; @全新导航器react-navigation精讲 使用setParams 改变route params setParams: function setParams(params...react-navigation精讲 注意navigation.setParams改变的是当前页面的Params,如果要改变其他页面的Params可以通过NavigationActions.setParams...通过SetParams我们可以修改指定页面的Params。...为什么还要有NavigationActions.setParams?...了; 另外,navigation.setParams只能修改当前页面的Params,而NavigationActions.setParams可以修改所有页面的Params; 还有那些应用场景?
'正在编辑' : '编辑完成'; 使用setParams 改变route params setParams: function setParams(params): 我们可以借助setParams来改变...{ const {setParams} = this.props.navigation; return ( <Button onPress={() => setParams...通过SetParams我们可以修改指定页面的Params。...为什么还要有NavigationActions.setParams?...了; 另外,navigation.setParams只能修改当前页面的Params,而NavigationActions.setParams可以修改所有页面的Params; 在使用React Navigation3x
pool.getResource(); try { long timeout = timeUnit.toSeconds(time); SetParams...setParams = new SetParams(); setParams.nx(); setParams.ex((int)timeout);...这里举例用UUID来实现值的唯一性 tryLock方法中为什么要使用 SetParams承载 setnx参数?为很么删除锁时要使用lua脚本来实现?...因为无论时加锁(setnx)操作,还是解锁(del)操作,都必须保证其代码的原子性 SetParams setParams = new SetParams(); setParams.nx(); setParams.ex...((int)timeout); String result = jedis.set(lockName, lockValue, setParams); 这段文中的代码等价与 jedis.setnx(lockName
StackNavigator 控制下的所有界面均可以通过 this.props.navigation 获取到当前导航对象 当前导航对象下有我们常用的几个方法 例如: const { navigate, state, setParams...更改导航配置 通过上面代码可以看到 setParams 它是一个 func 回想一下 this.props.navigation.state.params,与 setParams 是存在相似之处的。...对的,它与 setParams 刚好是对应起来的 当我们调用 this.props.navigation.setParams({}) 时, static navigationOptions = ({navigation...{ headerTitle: '个人信息', }}; updateNavigation() { this.props.navigation.setParams
BitmapFactory.Options options_setParams = new BitmapFactory.Options(); options_setParams.inDensity...= 320; options_setParams.inTargetDensity = 160; Bitmap bitmap_setParams = BitmapFactory.decodeResource...(getResources(), R.mipmap.success_large, options_setParams); Log.i(TAG, "bitmap_setParams:ByteCount...= " + bitmap_setParams.getByteCount() + ":::bitmap_setParams:AllocationByteCount = " + bitmap_setParams.getAllocationByteCount...()); Log.i(TAG, "width:" + bitmap_setParams.getWidth() + ":::height:" + bitmap_setParams.getHeight
tryLock(String key, String value, long expire) { Jedis jedis = RedisPool.getJedis(); SetParams...setParams = new SetParams(); setParams.nx().px(expire); return OK.equals(jedis.set(key..., value, setParams)); } public static boolean releaseLock(String key, String value) {
success"){ var toastEvent = $A.get("e.force:showToast"); toastEvent.setParams...页面跳转 var urlEvent = $A.get("e.force:navigateToURL"); urlEvent.setParams...else{ var toastEvent = $A.get("e.force:showToast"); toastEvent.setParams
(props) => {//在这里定义每个页面的导航属性,动态配置 const {navigation} = props; const {state, setParams...'保存' : '编辑'} onPress={() => setParams({mode: params.mode...'保存' : '编辑'} onPress={() => setParams({mode: params.mode...> } } 代码解析: 在上述代码中通过: <TextInput style={styles.input} onChangeText={text=>{ setParams...({title:text}) }} /> 将输入框中内容的变化,通过setParams({title:text})更新到页面的标题上,你会看到当输入框中内容发生变化时,标题也会跟着变。
SeckillService`),其中使用Redis分布式锁来保护库存扣减的操作: import redis.clients.jedis.Jedis; import redis.clients.jedis.params.SetParams...UUID.randomUUID().toString(); long acquireLockResult = jedis.set(REDIS_LOCK_KEY, lockValue, SetParams.setParams...使用`Jedis.set()`方法(配合`SetParams.nx().px()`参数)尝试获取分布式锁。`nx`表示只有当键不存在时才设置值(保证互斥性),`px`设置锁的过期时间(防止死锁)。
BitmapFactory.Options options_setParams = new BitmapFactory.Options(); options_setParams.inDensity...= 320; options_setParams.inTargetDensity = 320; Bitmap bitmap_setParams = BitmapFactory.decodeResource...(getResources(), R.mipmap.resbitmap, options_setParams); Log.i(TAG, "bitmap_setParams:ByteCount...= " + bitmap_setParams.getByteCount() + ":::bitmap_setParams:AllocationByteCount = " + bitmap_setParams.getAllocationByteCount...()); Log.i(TAG, "width:" + bitmap_setParams.getWidth() + ":::height:" + bitmap_setParams.getHeight
navigate:跳转到其他界⾯ state:屏幕的当前state setParams:改变路由的params goBack:关闭当前屏幕 disPatch:向路由发送一个action addListener...isFocused:true标识屏幕获取了焦点 getParam:获取具有回退的特定参数 dangerouslyGetParent:返回父导航器 注意:一个navigation有可能没有navigate、setParams...image-20190914172536556 更新参数 有getParam就有setParams。...title={'更新页面参数'} onPress={()=>{ this.props.navigation.setParams...注意:navigation.setParams改变的是当前页⾯的Params,如果要改变其他⻚面的Params可以通过 NavigationActions.setParams完成。
final Jedis jedis = new Jedis("127.0.0.1", 6379); private static void fillData(long min, long max, SetParams...System.out.println("count=" + i); } } } public static void main(String[] args) { SetParams...params = new SetParams(); FillData.fillData(0, 5000000, params); params.ex(50000L);
rs=null; 47 try { 48 ps = conn.prepareStatement(sql); 49 ps = setParams...ps=null; 79 try { 80 ps = conn.prepareStatement(sql); 81 ps = setParams...ps = conn.prepareStatement(sql,Statement.RETURN_GENERATED_KEYS); 111 ps = setParams...} 129 return null; 130 } 131 //��ֵͨ�÷��� 132 public PreparedStatement setParams
自定义方法,改变title的值 _gotoPage(title) { this.props.navigation.setParams({title: title}); } 使用onPress..._gotoPage.bind(this, '消息')} 或者方便起见,也可以不定义方法,直接在onPress中调用: onPress={() => this.props.navigation.setParams
),cartItem.getCount(),cartItem.getImage()}; pstmt=con.prepareStatement(sql); DaoFactory.setParams...; Object[] params={cartItem.getCount(),cartItem.getUid(),cartItem.getBid()}; DaoFactory.setParams...con.close(); } } catch (SQLException e) { e.printStackTrace(); } } // 3.setParams...占位符的值; public static void setParams(PreparedStatement pstmt, Object[] params) { if (params == null...setParams(pstmt, params);// 调用设置?的方法,已经写过了!!!
_setDefault(boundary=0.0) @keyword_only def setParams(self,*, inputCol=None..._set(**kwargs) def setInputCol(self,input_col): return self.setParams(inputCol=input_col...) def setOutputCol(self,output_col) -> str: return self.setParams(inputCol=output_col)...def setInputCols(self,new_inputCols): return self.setParams(inputCols=new_inputCols)..._input_kwargs self.setParams(**kwargs) def setCap_lt(self,your_cap): return self.setParams
redis.clients.jedis.exceptions.JedisDataException; import redis.clients.jedis.exceptions.JedisException; import redis.clients.jedis.params.SetParams...setnxex(final String key, final String value, int seconds) { return execute(e -> { SetParams...setParams = new SetParams(); setParams.nx(); setParams.ex(seconds);...return isStatusOk(jedis.set(key, value, setParams)); }); } public Object eval(final