Jun 08, 2018 While working on this application, I needed to generate unique IDs that could be used as the primary keys in the tables. When you’re working with a single MySQL database, you can simply use an auto-increment ID as the primary key, But this won’t work in a sharded MySQL database. Spring Boot + Spring Security + JWT + MySQL + React Full. Spring provides KeyHolder which helps to get auto generated key. KeyHolder is supported by JDBC 3.0.
Sep 29, 2019 PuTTY Key Generator, also known by the PuTTY gen moniker, is a small yet efficient program that can generate RSA and DSA keys for use with. Putty generate ssh key windows download mac. Sep 16, 2014 This is how you would create a SSH Keys under Windows XP/7/8. Download puttygen.exe and launch it. Then start to generate the keys. PuTTYgen is a key generator tool for creating pairs of public and private SSH keys. It is one of the components of the open-source networking client PuTTY. Although originally written for Microsoft Windows operating system, it is now officially available for multiple operating systems including macOS, Linux. PuTTYgen is an key generator tool for creating SSH keys for PuTTY. It is analogous to the ssh-keygen tool used in some other SSH implementations. The basic function is to create public and private key pairs. Nov 15, 2017 In this video, I show you how to setup SSH Keys in Windows with PuttyGen. This allows you to connect to your linux server without having to authenticate with a password.
1. Basic SimpleJdbcInsert ExampleIf using the JdbcTemplate class, you have to write an SQL Insert statement like this:Now, let’s see how to use theSpring Jdbc Auto-generated Primary Key ErrorSimpleJdbcInsert class. First, create a new instance:Next, specify the table name to insert data:Next, create a Map of parameters:Note that the key for each entry is the name of a column in the table. Then execute the statement like this:The returned value is the number of rows affected by the query. The whole code snippet would be as follows:You see, you don’t have to write SQL Insert statement. And using named parameters same as the column names make the code more readable.2. SimpleJdbcInsert Example that returns value of the auto-generated primary keyYou can use the SimpleJdbcInsertclass to execute SQL Insert statement and return value of the primary column which is auto-generated. Specify the name of the primary column as follows:And then specify the parameter values and execute:You see, the![]() Spring Jdbc Auto-generated Primary Key Examplemethod returns a Number object holding value of the auto-generated key of the primary column.Also in this example, we use MapSqlParameterSource instead of HashMap to specify parameter values because it allows us to chain multipleSpring Jdbc Auto-generated Primary Key TutorialaddValue() methods together. Learn more about using named parameters with Spring JDBC in this tutorial.3. SimpleJdbcInsert Example with BeanPropertySqlParameterSourceIf you have a domain model class that follows JavaBean convention, you can use the SimpleJdbcInsert class with a BeanPropertySqlParameterSource class. Consider the following example:As you can see, you don’t even have to specify parameter names and values, as long as you provide an object that has attributes same as the column names in the database table. In the above code, the contactvariable is an object of the Contact class as follows:That’s how to use the![]() Spring Jdbc Auto-generate Primary Key ExampleRelated Spring and Database Tutorials:
Other Spring Tutorials:Spring Jdbc Auto-generated Primary Key 2017About the Author:Nam Ha Minh is certified Java programmer (SCJP and SCWCD). He started programming with Java in the time of Java 1.4 and has been falling in love with Java since then. Make friend with him on Facebook.Comments are closed.
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