Article directory Database integrity 1. Entity integrity 1. Define entity integrity 2. Entity integrity check and breach handling 2. Referential integrity 1. Define referential integrity 2. Reference integrity check and default conditions 3. Constraints on attributes 1. Definition of constraints on attributes 2. Inspection of constraints on attributes and handling of breaches 4. Integrity constraint […]
Tag: entity
How to deploy Entity Framework database migration
Table of Contents Migrate via app least privileged subject Migrate via build server Command line tools Idempotent SQL script Bundle?Edit command line application Certification Summarize Managing stateful data is often one of the trickier parts of a DevOps strategy. Entity Framework’s migration capabilities can greatly help with small, independently executable, PR-friendly increments. In theory, it […]
Use reflection to dynamically construct wrapper conditions (use reflection to obtain annotation values and entity class values)
Use reflection to dynamically construct wrapper conditions Entity class /** * api list query entity class * *@authorwys */ @Data public class SysApiQuery { private Long id; /** * api name */ @Query(type = QueryTypeEnum.EQUAL) private String apiName; /** * api path */ @Query(type = QueryTypeEnum.EQUAL) private String apiUrl; /** Starting time */ @JsonIgnore private […]
Use myBatis to create tables based on entity classes in Java
①: Introduce dependencies (pom) 1. Introduce basic dependencies <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-jdbc</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-jpa</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <optional>true</optional> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> 2. Introduce mysql, myBatis, and data sources <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>8.0.26</version> </dependency> <!–Plug-in to create tables–> <dependency> <groupId>com.gitee.sunchenbin.mybatis.actable</groupId> <artifactId>mybatis-enhance-actable</artifactId> <version>1.5.0.RELEASE</version> </dependency> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>2.3.0</version> […]
A byte processing entity class used in java iot development
When developing and interacting with hardware, it is often necessary to convert byte data into basic types: 1. Splicing of byte data 2. Merging of byte data 3. Interception of byte data 4. Convert bytes to basic type data, and convert basic type data to byte array… public class ByteArrayUtil { /** * byte array […]
[MyBatis Plus] Use MyBatis Plus to complete the paging function and implement the universal paging entity
Article directory 1. MyBatis Plus paging plug-in 1.1 Understand the plug-in functions of MyBatis Plus 1.2 Configure paging plug-in 1.3 Test paging function 2. Implement universal paging entities 2.1 Paging query requirements 2.2 Pagination entity class 2.3 Paging query interface 2.4 Conversion of general entities 2.4.1 Convert PageQuery to MP Page 2.4.2 Paging results PO […]
BulkInsert in Entity Framework
BulkInsert extension method in Entity Framework Install Z.EntityFramework.Extensions: Now, I’ll show you how to use the Z.EntityFramework.Extensions package and perform bulk insert, update, and delete operations through Entity Framework. First, open the NuGet Package Manager Console window and search for the Z.EntityFramework.Extensions package. Select“Z.EntityFramework.Extensions“, then select “Project” and select the latest version, and finally click […]
webgoat- XML External Entity-XXE-XML entity injection
01 -XML entity injection concept This course explains how to perform an XML external entity attack and how to abuse and prevent it. Target Users should have basic knowledge of XML Users will learn how XML parsers work Users will learn how to perform an XXE attack and how to protect against it. 02 XML […]
[Resolved] ValueError: zero-size array to reduction operation minimum which has no identity
Problem description Taking over the previous bug problem, the details are as follows: Traceback (most recent call last): File “embed.py”, line 159, in main() File “embed.py”, line 138, in main (x_wm, y_wm), defense = defense_config.embed(defense=defense, File “/home/visionx/anaconda3/envs/watermark/lib/python3.8/site-packages/mlconfig/config.py”, line 20, in __call__ return self.instantiate(*args, **kwargs) File “/home/visionx/anaconda3/envs/watermark/lib/python3.8/site-packages/mlconfig/config.py”, line 65, in instantiate return func_or_cls(*args, **kwargs) File “/home/visionx/project/Watermark-Robustness-Toolbox/wrt/defenses/watermark/adi.py”, […]
[Java Tool Class] Tool class for converting Java objects and JSON strings to each other. Entity class objects are serialized into JSON strings and their deserialization methods.
Article Directory Article Table of Contents Text 1. Use the tool package (for example: hutool) 2. Write Json tool class Text In the process of web development, we often encounter scenarios that require JSON data, so we need some tools to help us quickly convert objects into JSON data and deserialize JSON data into Java […]