#*************** Config Module Related Configurations ***************#
### If use MySQL as datasource:
spring.datasource.platform=mysql
### Count of DB:
db.num=1
### Connect URL of DB:
db.url.0=jdbc:mysql://localhost:3306/nacos?characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true&useUnicode=true&useSSL=false&serverTimezone=UTC
db.user.0=root
db.password.0=root
4）修改配置文件名：cluster.conf.example 改为cluster.conf
#example
192.168.16.101:8848
192.168.16.102:8848
5）启动startup.cmd
Springboot服务搭建
一、新建微服务父项目
1、new project 选择maven
2、填写项目基本信息，完成parent项目初始化
3、删除不需要的src文件夹
二、新建微服务
1、new module(可以选择Spring)
2、填写微服务模块信息
3、pom.xml
4.0.0com.tmallproduct0.0.1-SNAPSHOTtmall-product-8020Demo project for Spring Boot1.8UTF-8UTF-8Hoxton.SR92.2.6.RELEASE2.3.2.RELEASEorg.springframework.cloudspring-cloud-dependencies${spring.cloud.version}pomimportcom.alibaba.cloudspring-cloud-alibaba-dependencies${spring.cloud.alibaba.version}pomimportorg.springframework.bootspring-boot-dependencies${spring.boot.version}pomimportorg.springframework.bootspring-boot-starter-webcom.alibaba.cloudspring-cloud-starter-alibaba-nacos-discoveryorg.apache.maven.pluginsmaven-compiler-plugin3.8.11.81.8UTF-8org.springframework.bootspring-boot-maven-plugin2.3.2.RELEASEcom.tmall.product.TmallProduct8020Applicationrepackagerepackage
@FeignClient(value="tmall-product",path = "/product")
public interface ProductFeignService {
@RequestMapping("/queryProductDetailByOrderId/{orderId}")
public String queryProductDetailByOrderId(@PathVariable("orderId") Long orderId);
}
4、tmall-order新增调用接口
@RestController
@RequestMapping("/order")
public class OrderController {
public static Logger logger = LoggerFactory.getLogger(OrderController.class);
@Autowired
private ProductFeignService productFeignService;
@RequestMapping(value = "/queryOrderDetail" , method = RequestMethod.POST)
public String queryOrderDetail(@RequestBody Map requestMap, HttpServletRequest request){
logger.info("queryOrderDetail 入参:"+ JSONObject.toJSONString(requestMap));
Long orderId = Long.valueOf(String.valueOf(requestMap.get("orderId"))) ;
return productFeignService.queryProductDetailByOrderId(orderId);
}
}
5、tmall-product新增对应接口
@RestController
@RequestMapping("/product")
public class ProductController {
public static Logger logger = LoggerFactory.getLogger(ProductController.class);
@RequestMapping(value = "/queryProductDetailByOrderId/{orderId}" , method = RequestMethod.GET)
public String queryProductDetailByOrderId(@PathVariable("orderId") Long orderId, HttpServletRequest request){
logger.info("queryOrderDetail 入参:"+ JSONObject.toJSONString(orderId));
return "lalala i'm product";
}
}
#*************** Config Module Related Configurations ***************#
### If use MySQL as datasource:
spring.datasource.platform=mysql
### Count of DB:
db.num=1
### Connect URL of DB:
db.url.0=jdbc:mysql://127.0.0.1:3306/nacos?characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true&useUnicode=true&useSSL=false&serverTimezone=UTC
db.user.0=nacos
db.password.0=nacos
### Connection pool configuration: hikariCP
db.pool.config.connectionTimeout=30000
db.pool.config.validationTimeout=10000
db.pool.config.maximumPoolSize=20
db.pool.config.minimumIdle=2
访问权限是java中一个比较中要的知识点,它规定者什么方法可以访问,什么不可以访问
一:包访问权限;
自定义包:
package com.wj.control;
//包
public class Demo {
//定义一个无参的方法
public void DemoPackage(){
System.out.println("调用
用户自定义聚合函数，用户提供的多个入参通过聚合计算(求和、求最大值、求最小值)得到一个聚合计算结果的函数。
问题：UDF也可以提供输入多个参数然后输出一个结果的运算，比如加法运算add(3，5)，add这个UDF需要实现UDF的evaluate方法,那么UDF和UDAF的实质分别究竟是什么？
Double evaluate(Double a, Double b)
在利用tomcat-redis-session-manager做session同步时，遇到了在session保存一个自定义对象时，修改该对象中的某个属性，session未进行序列化，属性没有被存储到redis中。 在 tomcat-redis-session-manager的github上有如下说明： Session Change Tracking
As noted in the &qu
关于Table Driven Approach的一篇非常好的文章：
http://www.codeproject.com/Articles/42732/Table-driven-Approach
package com.ljn.base;
import java.util.Random;
public class TableDriven {
public
