<plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-war-plugin</artifactId> <configuration> <webResources> <resource> <directory>${project.basedir}/lib</direc...

一个简单参数 @PostMapping("/query1") public Map query1(String name){ System.out.println("name = " + name); Map map = new HashMap(); map.put("success",true); return map; } Postma...

create table test3( id int primary key, name varchar2(50) not null, age number not null ); insert into test3 values(1,'张三',23); insert into test3 values(2,'李四',21); insert i...

--如果是数字返回数字, 否则返回0 CREATE OR REPLACE FUNCTION ISNUMBER( C VARCHAR2) RETURN NUMBER IS N NUMBER; BEGIN BEGIN N := TO_NUMBER(NVL(C,'a')); EXCEPTION WHEN OTHERS THEN RE...

我们在用阿里巴巴的Excel组件解析excel的时候, 会出现表头和内容列数不一致的情况, 采用以下方式就可以了 public class EasyExcelDemo { private static String getCellValue(final Object v...

我们在用阿里巴巴的Excel组件解析excel的时候, 会出现表头和内容列数不一致的情况, 采用以下方式就可以了 public class EasyExcelDemo { private static String getCellValue(final Object v...

IDEA集成tomcat启动成功,但项目工程未加载问题 tomcat配置好了, 启动成功, 但项目工程没有加载, 是因为我tomcat里边配置了jvm启动参数错误 set JAVA_OPTS=-DENV=test 改为下面的, 启动就能正...

public interface JpaContext { EntityManager getEntityManagerByManagedType(Class<?> managedType); }...

package org.springframework.data.jpa.repository; import java.io.Serializable; import java.util.List; import javax.persistence.EntityManager; import org.springframework.data.d...

soa架构 dubbo spring spring-jpa spring-mvc jms cxf git

配置如下: <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans"   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context=...

cdh集群管理工具

hadoop fs -mkdir /tmp/input 在HDFS上新建文件夹 hadoop fs -put input1.txt /tmp/input 把本地文件input1.txt传到HDFS的/tmp/input目录下 hadoop fs -get input1.txt /tmp/input/input1.tx...

1. mysql设置密码 set password =password('123456'); flush privileges; 2. mysql与远程访问 update user set host = '%' where user = 'root'; SET PASSWORD FOR 'root'@'localhost' = PA...