1， 一般而言， 只要是类自己管理内存，程序员就该警惕内存泄漏的问题2，内存泄漏的另一个常见来源是 缓存 可以用 WeakHashMap 代表缓存，当
SELECT SUM(num) FROM( SELECT 'osc1' as type,COUNT(*) AS num FROM fi_osc1.schedule_task_8UNION ALLSELECT 'osc2' as type,COUNT(*) AS num FROM fi_osc2.schedule_task_8UNION ALLSELECT ...
import java.io.*;@SuppressWarnings("serial")class Person implements Serializable { // 不让反序列化 ,该值为类型的默认值 privg name, int age...
public class SystemInfo { public static void main(String[] args) {System.getProperties().list(System.out);}}
前提是要更新的表中的字段名称必须命名统一1. import com.alibaba.fastjson.JSONObject;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.beans.factory.annotation.Autowired;import org.s...
1. sql2. 错误select * from a full outer join b on a.name = b.name> 1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right...
1.打开项目2. 找到Settings并勾选Issues3. 可 设置 Set up templates 模板Add template 并 提交 Commit changes4. 创建自己的第一个Issues5. 创建自己的第一个Issues6. 编写 并提交...
SELECT * FROM (SELECT *,1 FROM fi_osc1.schedule_task_1 WHERE status = 10 and create_time >='2018-09-10 10:00:00'UNION ALLSELECT *,2 FROM fi_osc2.schedule_task_1 WHERE status = 10 and create_ti...
SELECT task_body,remark,fingerprint FROM `schedule` WHERE task_body REGEXP '"cityId":86'
(function () {var url=["http:www.baidu.com","http:www.baidu.com"]for(var i=0;i<url.length;i++){ window.open(url[i], '_blank').location;}}());
2018-08-28 17:13:21 ERROR com.sprucetec.osc.task.ScanBalanceTask scanBalanceInnerNew:114 - ScanBalance F
批处理脚本1. 新建记事本 ，复制以及内容@echo offset "Ymd=%date:~0,4%%date:~5,2%%date:~8,2%0%time:~1,1%%time:~3,2%%time:~6,2%"IF NOT EXIST "e:\数据备份" (md "e:\数据备份")"e:\Program Files\MySQL\MySQL Server 5.0\"bin\m...
第一种方式:使用@ModelAttribute 注解 + 对象接收1. get 请求 入参为 projectIds=1,2,32. @RequestMapping("/analysis") 或者 @GetMapping("/analysis") 使用 @ModelAttribute 注解 @RequestMapping("/analysis")public JsonResu...
1.import com.alibaba.dubbo.common.logger.Logger;import com.alibaba.dubbo.common.logger.LoggerFactory;import org.springframework
1.2. 录入 tag 或者 branch
jdk 1.8default void sort(Comparator<? super E> c) { Object[] a = this.toArray(); Arrays.sort(a, (Comparator) c); ListIterator<E> i = this.listIterator(); for (Object e : ...
1.找到 workspace.xml 位置并删除2. 重新install
curl -X POST \http://192.168.254.22:8080/api/gisservice/bizCity/fetchAll \-H 'Cache-Control: no-cache' \-H 'Content-fe3-ce150259767a'...
1.import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;import org.slf4j.Logger;import org.slArr...
原因： 字符串没有添加引号造成的Uncaught ReferenceError: is not defined at HTMLAnchorElement.onclick var msg= "类型：" + source_type_name + "<br>单号：<a href='javascript:void(0)' onclick='rOrderDetail(...
# maven ignoretarget/*.jar*.war*.ear*.zip*.tar*.tar.gz# eclipse ignore.settings/.project.classpath# idea ignore.idea/*.ipr*.iml*.iws# logs #logs# temp ignore*.log*.cache*.di...
<!--获取归档人--><!--@author --><!--@since 2018-07-17--><select id="getArchiveInfo" parameterType="string" resultMap="BaseMap"> SELECT DISTINCT archive_id AS id ,arch
<!doctype html><html> <head> <meta charset="UTF-8"> <meta name="Description" content=""> <title>实现IE的打印</title> <
insert into fi_etl.t_osc_subsidiary_sales select *,UNIX_TIMESTAMP() from fi_osc1.t_osc_customer_bill
官方网址 :https://projectlombok.org/项目地址 :https://github.com/rzwitserloot/lombok使用案例 :https://github.com/peichhorn/lombok-pg
<!doctype html><html> <head> <title>打印</title> </head> <body> <div id="print"> <table> <tr&a
展示ddlCREATE TABLE `crm_dictionary` ( `id` bigint(20) NOT NULL AUTO_INCREMENT, `code` int(16) NOT NULL, `value` varchar(256) NOT NULL, `type` varchar(32) NOT NULL, `remark` varchar(...
编写sql 2. 预编译 3. 设置参数 4. 执行sql 5. 封装结果
1.2.添加用户名 、时间 ，并全部勾选
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