如何定制一个使用Spring Boot注入的jOOQ配置（附实例）

从Spring Boot 2.5开始，你可以实现一个方便的新回调，叫做 DefaultConfigurationCustomizer的回调，其中DefaultConfiguration一词对应于jOOQ的 DefaultConfiguration.你可以在你的项目中简单地创建一个这样的类：

import org.jooq.conf.RenderQuotedNames;
import org.jooq.impl.DefaultConfiguration;
import org.springframework.boot.autoconfigure.jooq.*;
import org.springframework.context.annotation.*;

@Configuration
public class Config {
	@Bean
	public DefaultConfigurationCustomizer configurationCustomiser() {
		return (DefaultConfiguration c) -> c.settings()
			.withRenderQuotedNames(
				RenderQuotedNames.EXPLICIT_DEFAULT_UNQUOTED
			);
	}
}

上述回调在初始化阶段接收DefaultConfiguration ，在此期间，你仍然可以安全地突变它，以改变任何默认值，或添加额外的设置，等等。就这样了

你可以在lambda里面设置一个断点，以验证这个初始化被调用的时间：

Caused by: java.lang.RuntimeException
	at org.jooq.example.spring.Config.lambda$0(Config.java:30)
	at org.springframework.boot.autoconfigure.jooq.JooqAutoConfiguration$DslContextConfiguration.lambda$jooqConfiguration$1(JooqAutoConfiguration.java:104)
	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
	at java.base/java.util.stream.SortedOps$RefSortingSink.end(SortedOps.java:395)
	at java.base/java.util.stream.Sink$ChainedReference.end(Sink.java:258)
	at java.base/java.util.stream.Sink$ChainedReference.end(Sink.java:258)
	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:510)
	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499)
	at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150)
	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173)
	at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:596)
	at org.springframework.boot.autoconfigure.jooq.JooqAutoConfiguration$DslContextConfiguration.jooqConfiguration(JooqAutoConfiguration.java:104)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:568)
	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154)
	... 119 more

要玩这个例子，请查看github上的jOOQ-spring-boot-example。