JPA utf-8 characters not persisted

Question

I have a simple web application where I use JPA.

I have an entity called BlogEntry.

When I submit a new BlogEntry, when I debug my applica

Answer 1

This solved it nicely:

<property name="hibernate.connection.useUnicode" value="true" />
<property name="hibernate.connection.characterEncoding" value="UTF-8" />

Edit: with hibernate 4.3.1 this works:

<property name="connection.useUnicode">true</property>
<property name="connection.characterEncoding">utf-8</property>

Answer 2

This helped in Spring Boot:

spring.datasource.url=jdbc:mysql://localhost:3306/securitydb?useUnicode=yes&characterEncoding=UTF-8

Answer 3

Another common mistake can be the wrong encoding of the database. If you just cerated the database without the correct encoding this error can also be a result. use

create database mydb character set utf8 collate utf8_general_ci;

instead of

create database mydb;

Answer 4

use the character encoding in the property of persistence.xml file

<property name="javax.persistence.jdbc.url" 
   value="jdbc:mysql://localhost:3306/blogdatabase?useUnicode=yes&amp;characterEncoding=UTF-8"/>