java

Table 'customerjpa.sequence' doesn't exist JPA

六月ゝ 毕业季﹏ 提交于 2021-02-18 18:46:37
问题 I am facing following problem while inserting data into table using single inheritance in jpa. run: [EL Info]: 2014-04-17 22:40:45.947--ServerSession(863001717)--EclipseLink, version: Eclipse Persistence Services - 2.2.0.v20110202-r8913 [EL Info]: 2014-04-17 22:40:46.387--ServerSession(863001717)--file:/C:/Users/xone/Documents/NetBeansProjects/JPAAditiDAS/build/classes/_TESTJPAPU login successful [EL Warning]: 2014-04-17 22:40:46.469--ClientSession(1037426453)--Exception [EclipseLink-4002]

Why would one add a constant to hashCode()? [duplicate]

懵懂的女人 提交于 2021-02-18 18:45:05
问题 This question already has answers here : Why does Java's hashCode() in String use 31 as a multiplier? (13 answers) Closed 2 years ago . I'm new to Java, and I've recently learned about hashCode() . On the wikipedia article about Java hashCode(), there is the following example of a hashCode() method: public class Employee { int employeeId; String name; Department dept; // other methods would be in here @Override public int hashCode() { int hash = 1; hash = hash * 17 + employeeId; hash = hash *

Why would one add a constant to hashCode()? [duplicate]

只愿长相守 提交于 2021-02-18 18:44:48
问题 This question already has answers here : Why does Java's hashCode() in String use 31 as a multiplier? (13 answers) Closed 2 years ago . I'm new to Java, and I've recently learned about hashCode() . On the wikipedia article about Java hashCode(), there is the following example of a hashCode() method: public class Employee { int employeeId; String name; Department dept; // other methods would be in here @Override public int hashCode() { int hash = 1; hash = hash * 17 + employeeId; hash = hash *

Appium环境搭建(Appium库的安装)

两盒软妹~` 提交于 2021-02-18 18:34:18
Appium环境搭建 谷歌驱动和对照:注意:64位向下兼容,直接下载32位的就可以啦,亲测可用。 https://blog.csdn.net/allthewayforward/article/details/81736418 本文主要讲述 Appium 环境的搭建,虽然网上有很多 Appium 的搭建教导教程,但大数描述不够祥细而导致环境搭建失败。本人经过多次实验,终找到了搭建成功的方法,分享给大家进行参考 工具 /原料 夜神模拟器连接手机 {SDK目录下的adb.exe文件,复制到夜神模拟器的目录下,复制过去之后改名为nox_adb.exe} 3.然后命令行窗口中输入adb connect 127.0.0.1:62001即可以连接到adb .启动要查看的程序, usp连接手机后---手机打开usp调试命令行输入: 使用adb shell dumpsys window | findstr mCurrentFocus 命令查看当前运行的包名和Activity更清晰。 Java(JDK),AndroidSDK(SDK),Android模拟器、Appium服务端、Python 库 方法 /步骤 1 安装配置 JDK 环境:安装 JDK 过程简单,不再累述;下面进行 JDK 的配置,参数如下: JAVA_HOME (你的 JDK 安装位置,如: C:\Program Files\Java

介绍一款 API 敏捷开发工具

十年热恋 提交于 2021-02-18 18:33:53
点 击上方“ 掌上编程 ”,选择“ 置顶或者星标 ” 优质文章第一时间送达! 初衷 用尽可能简单的方式,完成尽可能多的需求。通过约定的方式 实现统一的标准。告别加班,拒绝重复劳动,远离搬砖. 特性 用于快速开发API接口。不再定义 Controller , Service , Dao , Mybatis , xml , Entity , VO 等对象和方法. 可视化界面,将入参自动封装到可执行的脚本上,支持所有关系性数据库SQL执行语句,非关系型 MONGODB 查询语句.欢迎扩展 完全基于springboot2.x 作为springboot项目的stater方式集成,无侵入性,新老项目都能快速集成 只需编写一行代码即可完成大部分的业务需求开发,使用难度级别(测试 or 运维)也可参与开发 在线动态编译,无需重启,即时生效,多数据源操作 版本控制,历史记录比对,回滚等功能 远程一键发布到线上环境 线上POSTMAN调试,保存POSTMAN信息或三方文档的自动生成,历史调用记录存储,回塑 代码提示,SQL提示,语法提示 用户管理控制,安全性控制,以及历史行为记录 经过多次项目验证,传统业务型开发,服务端效率能够提升3-5倍,前后端联调提升效率1倍,测试效率2倍提升 传统开发步骤: 增加一张表 创建实体对象,映射这张表 创建API入参VO 创建API出参VO 创建Controller

Activiti7整合SpringBoot(十二)

巧了我就是萌 提交于 2021-02-18 18:30:04
1 SpringBoot 整合 Activiti7 的配置 为了能够实现 SpringBoot 与 Activiti7 整合开发,首先我们要引入相关的依赖支持。 所以,我们在工程的 pom.xml 文件中引入相关的依赖,具体依赖如下所示: < properties > < project.build.sourceEncoding > UTF-8 </ project.build.sourceEncoding > < project.reporting.outputEncoding > UTF-8 </ project.reporting.outputEncoding > < java.version > 1.8 </ java.version > </ properties > < dependencies > < dependency > < groupId > org.springframework.boot </ groupId > < artifactId > spring-boot-starter-jdbc </ artifactId > </ dependency > < dependency > < groupId > mysql </ groupId > < artifactId > mysql-connector-java </ artifactId > </

File upload endpoint need to close InputStream?

喜夏-厌秋 提交于 2021-02-18 18:20:25
问题 @POST @Consumes(MediaType.MULTIPART_FORM_DATA) @Path("/upload") public String upload(@FormDataParam("file") InputStream inputStream) { ... inputStream.close(); // necessary? } For an API endpoint that accepts a file input, do we need to manually close the InputStream or does the framework do it for us? I have checked the Jersey docs but could not find any information about it. Looking for credible source or some way to validate it. 回答1: It is your responsibility to close InputStream. Jersey

File upload endpoint need to close InputStream?

懵懂的女人 提交于 2021-02-18 18:20:07
问题 @POST @Consumes(MediaType.MULTIPART_FORM_DATA) @Path("/upload") public String upload(@FormDataParam("file") InputStream inputStream) { ... inputStream.close(); // necessary? } For an API endpoint that accepts a file input, do we need to manually close the InputStream or does the framework do it for us? I have checked the Jersey docs but could not find any information about it. Looking for credible source or some way to validate it. 回答1: It is your responsibility to close InputStream. Jersey

Java client call to Windows Integated Authentication web service

China☆狼群 提交于 2021-02-18 18:16:45
问题 I am writing a Java 1.5+ client that needs to fetch data from an IIS-hosted web service. I created a new web service client in Eclipse and used the Java Proxy client type and Apache Axis2 web service runtime when generating the client proxy. The web service itself runs on Windows 2003 and security is set to use only Windows Integrated Authentication. I have found many articles online that show how to connect successfully from a Java client to this IIS service, but everything I have seen seems

How to configure persistence.xml provider tag

萝らか妹 提交于 2021-02-18 18:14:41
问题 Hey I'm learning this stuff, I don't really understand all of it and I have a problem, I don't know what to write in provider tag in persistence.xml Here are my persistence.xml and pom.xml files: pom.xml <?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com