yeon
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@GeneratedValue ์ฌ์ฉ ํ DDL ์คํจ
+ ํด๋น ๋ฌธ์ ํด๊ฒฐํ์ต๋๋ค H2์์ User๊ฐ ์์ฝ์ด์๋๊ฑด์ง Users๋ก ์ด๋ฆ์ ๋ณ๊ฒฝํ๋๊น ์ ๋ฌธ์ ๋ ํด๊ฒฐํ์ต๋๋ค! ๋ค๋ง ์๋ ์๋ฌ๊ฐ ์๋กญ๊ฒ ๋ฐ์ํ์ต๋๋คใ _ใ Caused by: org.h2.jdbc.JdbcSQLFeatureNotSupportedException: Feature not supported: "CHARACTER VARYING(255)"; SQL statement: create table Users ( id varchar(255) generated by default as identity, name varchar(255), primary key (id) ) [50100-204] ์ ์ฒด ์ฝ๋: https://github.com/yeon-06/inflearnSpring/tree/master/jpa-ex1
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Error parsing HTTP request header ์๋ฌ
์๋ ํ์ธ์! ํด๊ฒฐํ๋๋ฐ ์ ์ ๊ฐ์ ๊ณ ๋ฏผ์ด ์๊ธฐ์๋ ๋ถ์ด ์๊ธฐ์ค๊น๋ด ํด๊ฒฐ ๋ฐฉ๋ฒ ์ฌ๋ฆฝ๋๋ค~! ๊น์ํ๋ ์์ค ์ฝ๋๋ ๋น๊ตํ๋๋ฐ๋ ์๋ชป๋ ๋ถ๋ถ์ด ์์ด์ ์ ๋ง.. ์ค๋ ์๊ฐ ์ด๊ฑฐ๋ง ๋ค์ฌ๋ค๋ณด๊ณ ์์๋๋ฐ์.... ๊ฒฐ๋ก ์ build.gradle์ refresh ํด์ ํด๊ฒฐํ์ต๋๋ค ํ์ฌ์ ์ง์ ์๋ค๊ฐ๋ค ํ๋ฉฐ ๋ฃ๋๋ผ ์์ ํ๊ฒฝ์ด ๋ง์ด ๋ฐ๋์์๋๋ฐ... build.gradle์์ jsp๋ฅผ ์ธ์ํด์ฃผ๋ ๋ค์ ๋ถ๋ถ์ด ์ ๋๋ก ์ฃผ์ ์ด ์๋์ด์ ๋ฐ์ํ๋ ๋ฌธ์ ์ธ ๊ฒ ๊ฐ์ต๋๋คใ ใ implementation 'org.apache.tomcat.embed:tomcat-embed-jasper' implementation 'javax.servlet:jstl'
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SpringConfig
๋ค๋ฅธ๊ฑด ๋ค ์ง์ ๋๋ฐ ์ @Service๋ ์ ์ง์ ๋๊ฑด์ง...ใ ใ ์ง์ฐ๋๊น ๋ฐ๋ก ๋ฉ๋๋ค! ๋ต๋ณ ๊ฐ์ฌํฉ๋๋ค^^~ ๊ฐ์ ์ ๋ณด๊ณ ์์ด์~!
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SpringConfig
์ค์ ์์ ์ ๊ฑฐํด์ผํ๋ค๋๊ฑด ์ด๋ค ์ค์ ํ์ผ์ ์์ ํด์ผ ํ๋๊ฑธ๊น์?? Description: The bean 'memberService', defined in class path resource [test/hellospring/SpringConfig.class], could not be registered. A bean with that name has already been defined in file [D:\eclipseWorkspace\springProject\hello_spring\bin\main\test\hellospring\service\MemberService.class] and overriding is disabled. Action: Consider renaming one of the beans or enabling overriding by setting spring.main.allow-bean-definition-overriding=true ๋ผ๋ ์ค๋ฅ๊ฐ ๋น๋๋ค~! ์คํ๋ง์ ์ ์ ์ข ํด์ ์ค๋ฅ ์์ธ ์ฐพ๊ธฐ ์ข ์ํ๊ณ ์ถ์๋ฐ ๋ง์ฒ๋ผ ์๋๋ค์ใ ใ
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findByName() ํ ์คํธ ์ค๋ฅ
์ค๋ ๋ค์ ๋ณด๋ ํ ์คํธ ์ฝ๋์์ setName์ member1์์๋ง 2๋ฒ ํ๋ค์^^; spring2๋ผ๋ ์ด๋ฆ๋ง ๊ฐ์ง๊ณ ์๋๋ฐ spring1์ ๊ฒ์ํด์ ์๋ฌ๊ฐ ๋ ๊ฒ ๊ฐ์ต๋๋ค. ์ง๋ฌธ ๋ฐ์์ฃผ์ ์ ๊ฐ์ฌํฉ๋๋ค
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Q&A
findByName() ํ ์คํธ ์ค๋ฅ
์์์ผ๋ก๋ ๋๋ค์ ์ฌ์ฉํ ๋ ์ค๋ฅ๊ฐ ๋ ๊ฒ ๊ฐ๊ณ java.lang.NullPointerException at test.hellospring.repository.MemoryMemberRepository.lambda$0(MemoryMemberRepository.java:31) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:176) at java.base/java.util.HashMap$ValueSpliterator.tryAdvance(HashMap.java:1696) at java.base/java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:127) at java.base/java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:502) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:488) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.FindOps$FindOp.evaluateSequential(FindOps.java:150) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.findAny(ReferencePipeline.java:548) ... ํด๋น ์ฝ๋์ ์ ๋ฌธ์ ๋๋ค public class MemoryMemberRepository implements MemberRepository{ private static Map store = new HashMap(); private static long sequence = 0L; @Override public Optional findByName(String name) { return store.values().stream() .filter(member -> member.getName().equals(name)) .findAny(); // ํ๋๋ผ๋ ์ฐพ๊ธฐ } public void clearStore() { store.clear(); } }
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