如何修复：Jooq 代码不会从 sql 脚本为内存 db 中的 sqlite 生成 java 代码
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【中文标题】如何修复：Jooq 代码不会从 sql 脚本为内存 db 中的 sqlite 生成 java 代码【英文标题】：How to fix: Jooq code does not generate java code for sqlite in memory db from sql script 【发布时间】：2020-02-16 08:34:08 【问题描述】：我正在尝试生成与内存 SQLite 一起使用的 Jooq 代码。 问题是，每个新连接都会创建一个新的 SQLite 实例，这使得代码创建依赖于 sql 脚本。但是，当我尝试将代码生成与documentation 匹配时，不会生成代码。我相信它仍然会尝试访问为空的数据库。
我也不确定 jooq 是否可以与非持久性数据库一起使用。该数据库旨在仅在程序运行期间存在。当程序关闭时，数据库应该消失了。如果 jooq 在整个运行时都获取新连接，我无论如何都必须切换。
Jooq 世代：
public static void runJooqCodeGen() throws Exception
String url = "jdbc:sqlite:";
String driver = "org.sqlite.JDBC";
Configuration configuration = new Configuration().withJdbc(new Jdbc().withDriver(driver).withUrl(url))
.withGenerator(new Generator()
.withDatabase(new Database()
.withProperties(new Property()
.withKey("scripts")
.withValue("src/main/resources/db/Schema.sql")))
.withGenerate(new Generate()
.withPojos(Boolean.TRUE)
.withDeprecationOnUnknownTypes(Boolean.FALSE))
.withTarget(new Target()
.withPackageName("me.leslie.generals.server.persistence.jooq")
.withDirectory("Generals-Server/src/main/java")));
GenerationTool.generate(configuration);
src/main/resources/db/Schema.sql：
CREATE TABLE IF NOT EXISTS TROOP(
id INTEGER PRIMARY KEY AUTOINCREMENT,
current_health INTEGER NOT NULL,
max_health INTEGER NOT NULL,
pos_x DOUBLE NOT NULL,
pos_y DOUBLE NOT NULL,
normal_speed DOUBLE NOT NULL,
street_speed DOUBLE NOT NULL,
difficult_terrain_speed DOUBLE NOT NULL,
close_combat_range DOUBLE NOT NULL,
ranged_combat_range DOUBLE NOT NULL,
normal_view_distance DOUBLE NOT NULL,
disadvantaged_view_distance DOUBLE NOT NULL,
advantaged_view_distance DOUBLE NOT NULL
);
CREATE TABLE IF NOT EXISTS ARMY(
id INTEGER,
hq INTEGER,
troop INTEGER,
FOREIGN KEY(hq) REFERENCES TROOP(id),
FOREIGN KEY(troop) REFERENCES TROOP(id),
UNIQUE(hq, troop),
PRIMARY KEY (id, hq, troop)
);
生成没有以错误结束，但这是控制台输出。
19:02:57.342 [main] DEBUG org.jooq.codegen.GenerationTool - Input configuration : <onError>FAIL</onError><jdbc><driver>org.sqlite.JDBC</driver><url>jdbc:sqlite:</url></jdbc><generator><name>org.jooq.codegen.DefaultGenerator</name><database><regexMatchesPartialQualification>true</regexMatchesPartialQualification><sqlMatchesPartialQualification>true</sqlMatchesPartialQualification><includes>.*</includes><excludes></excludes><includeExcludeColumns>false</includeExcludeColumns><includeTables>true</includeTables><includeEmbeddables>true</includeEmbeddables><includeRoutines>true</includeRoutines><includeTriggerRoutines>false</includeTriggerRoutines><includePackages>true</includePackages><includePackageRoutines>true</includePackageRoutines><includePackageUDTs>true</includePackageUDTs><includePackageConstants>true</includePackageConstants><includeUDTs>true</includeUDTs><includeSequences>true</includeSequences><includeIndexes>true</includeIndexes><includePrimaryKeys>true</includePrimaryKeys><includeUniqueKeys>true</includeUniqueKeys><includeForeignKeys>true</includeForeignKeys><includeCheckConstraints>true</includeCheckConstraints><includeInvisibleColumns>true</includeInvisibleColumns><recordVersionFields></recordVersionFields><recordTimestampFields></recordTimestampFields><syntheticIdentities></syntheticIdentities><syntheticPrimaryKeys></syntheticPrimaryKeys><overridePrimaryKeys></overridePrimaryKeys><dateAsTimestamp>false</dateAsTimestamp><ignoreProcedureReturnValues>false</ignoreProcedureReturnValues><unsignedTypes>true</unsignedTypes><integerDisplayWidths>true</integerDisplayWidths><inputCatalog></inputCatalog><outputCatalogToDefault>false</outputCatalogToDefault><inputSchema></inputSchema><outputSchemaToDefault>false</outputSchemaToDefault><schemaVersionProvider></schemaVersionProvider><catalogVersionProvider></catalogVersionProvider><orderProvider></orderProvider><forceIntegerTypesOnZeroScaleDecimals>true</forceIntegerTypesOnZeroScaleDecimals><logSlowQueriesAfterSeconds>5</logSlowQueriesAfterSeconds><logSlowResultsAfterSeconds>5</logSlowResultsAfterSeconds><properties><property><key>scripts</key><value>src/main/resources/db/Schema.sql</value></property></properties></database><generate><indexes>true</indexes><relations>true</relations><implicitJoinPathsToOne>true</implicitJoinPathsToOne><deprecated>true</deprecated><deprecationOnUnknownTypes>false</deprecationOnUnknownTypes><instanceFields>true</instanceFields><generatedAnnotation>true</generatedAnnotation><generatedAnnotationType>DETECT_FROM_JDK</generatedAnnotationType><routines>true</routines><sequences>true</sequences><udts>true</udts><queues>true</queues><links>true</links><keys>true</keys><tables>true</tables><embeddables>true</embeddables><records>true</records><recordsImplementingRecordN>true</recordsImplementingRecordN><pojos>true</pojos><pojosEqualsAndHashCode>false</pojosEqualsAndHashCode><pojosToString>true</pojosToString><immutablePojos>false</immutablePojos><serializablePojos>true</serializablePojos><interfaces>false</interfaces><immutableInterfaces>false</immutableInterfaces><serializableInterfaces>true</serializableInterfaces><daos>false</daos><jpaAnnotations>false</jpaAnnotations><validationAnnotations>false</validationAnnotations><springAnnotations>false</springAnnotations><globalObjectReferences>true</globalObjectReferences><globalCatalogReferences>true</globalCatalogReferences><globalSchemaReferences>true</globalSchemaReferences><globalTableReferences>true</globalTableReferences><globalSequenceReferences>true</globalSequenceReferences><globalUDTReferences>true</globalUDTReferences><globalRoutineReferences>true</globalRoutineReferences><globalQueueReferences>true</globalQueueReferences><globalLinkReferences>true</globalLinkReferences><globalKeyReferences>true</globalKeyReferences><javadoc>true</javadoc><comments>true</comments><commentsOnCatalogs>true</commentsOnCatalogs><commentsOnSchemas>true</commentsOnSchemas><commentsOnTables>true</commentsOnTables><commentsOnColumns>true</commentsOnColumns><commentsOnUDTs>true</commentsOnUDTs><commentsOnAttributes>true</commentsOnAttributes><commentsOnPackages>true</commentsOnPackages><commentsOnRoutines>true</commentsOnRoutines><commentsOnParameters>true</commentsOnParameters><commentsOnSequences>true</commentsOnSequences><commentsOnLinks>true</commentsOnLinks><commentsOnQueues>true</commentsOnQueues><commentsOnKeys>true</commentsOnKeys><fluentSetters>false</fluentSetters><javaBeansGettersAndSetters>false</javaBeansGettersAndSetters><varargSetters>true</varargSetters><fullyQualifiedTypes></fullyQualifiedTypes><emptyCatalogs>false</emptyCatalogs><emptySchemas>false</emptySchemas><javaTimeTypes>false</javaTimeTypes><primaryKeyTypes>false</primaryKeyTypes><newline>\n</newline></generate><target><packageName>me.leslie.generals.server.persistence.jooq</packageName><directory>Generals-Server/src/main/java</directory><encoding>UTF-8</encoding><clean>true</clean></target></generator>
19:02:57.424 [main] INFO org.jooq.codegen.GenerationTool - Database : Inferring database org.jooq.meta.sqlite.SQLiteDatabase from URL jdbc:sqlite:
19:02:57.426 [main] INFO org.jooq.codegen.GenerationTool - No <inputCatalog/> was provided. Generating ALL available catalogs instead.
19:02:57.426 [main] INFO org.jooq.codegen.GenerationTool - No <inputSchema/> was provided. Generating ALL available schemata instead.
19:02:57.524 [main] INFO org.jooq.codegen.AbstractGenerator - License parameters
19:02:57.524 [main] INFO org.jooq.codegen.AbstractGenerator - ----------------------------------------------------------
19:02:57.524 [main] INFO org.jooq.codegen.AbstractGenerator - Thank you for using jOOQ and jOOQ's code generator
19:02:57.524 [main] INFO org.jooq.codegen.AbstractGenerator -
19:02:57.524 [main] INFO org.jooq.codegen.AbstractGenerator - Database parameters
19:02:57.524 [main] INFO org.jooq.codegen.AbstractGenerator - ----------------------------------------------------------
19:02:57.524 [main] INFO org.jooq.codegen.AbstractGenerator - dialect : SQLITE
19:02:57.524 [main] INFO org.jooq.codegen.AbstractGenerator - URL : jdbc:sqlite:
19:02:57.524 [main] INFO org.jooq.codegen.AbstractGenerator - target dir : Generals-Server/src/main/java
19:02:57.524 [main] INFO org.jooq.codegen.AbstractGenerator - target package : me.leslie.generals.server.persistence.jooq
19:02:57.524 [main] INFO org.jooq.codegen.AbstractGenerator - includes : [.*]
19:02:57.524 [main] INFO org.jooq.codegen.AbstractGenerator - excludes : []
19:02:57.524 [main] INFO org.jooq.codegen.AbstractGenerator - includeExcludeColumns : false
19:02:57.524 [main] INFO org.jooq.codegen.AbstractGenerator - ----------------------------------------------------------
19:02:57.524 [main] INFO org.jooq.codegen.JavaGenerator -
19:02:57.524 [main] INFO org.jooq.codegen.JavaGenerator - JavaGenerator parameters
19:02:57.524 [main] INFO org.jooq.codegen.JavaGenerator - ----------------------------------------------------------
19:02:57.524 [main] INFO org.jooq.codegen.JavaGenerator - annotations (generated): true
19:02:57.524 [main] INFO org.jooq.codegen.JavaGenerator - annotations (JPA: any) : false
19:02:57.524 [main] INFO org.jooq.codegen.JavaGenerator - annotations (JPA: version):
19:02:57.524 [main] INFO org.jooq.codegen.JavaGenerator - annotations (validation): false
19:02:57.524 [main] INFO org.jooq.codegen.JavaGenerator - comments : true
19:02:57.524 [main] INFO org.jooq.codegen.JavaGenerator - comments on attributes : true
19:02:57.524 [main] INFO org.jooq.codegen.JavaGenerator - comments on catalogs : true
19:02:57.524 [main] INFO org.jooq.codegen.JavaGenerator - comments on columns : true
19:02:57.524 [main] INFO org.jooq.codegen.JavaGenerator - comments on keys : true
19:02:57.524 [main] INFO org.jooq.codegen.JavaGenerator - comments on links : true
19:02:57.524 [main] INFO org.jooq.codegen.JavaGenerator - comments on packages : true
19:02:57.524 [main] INFO org.jooq.codegen.JavaGenerator - comments on parameters : true
19:02:57.524 [main] INFO org.jooq.codegen.JavaGenerator - comments on queues : true
19:02:57.524 [main] INFO org.jooq.codegen.JavaGenerator - comments on routines : true
19:02:57.524 [main] INFO org.jooq.codegen.JavaGenerator - comments on schemas : true
19:02:57.524 [main] INFO org.jooq.codegen.JavaGenerator - comments on sequences : true
19:02:57.524 [main] INFO org.jooq.codegen.JavaGenerator - comments on tables : true
19:02:57.524 [main] INFO org.jooq.codegen.JavaGenerator - comments on udts : true
19:02:57.524 [main] INFO org.jooq.codegen.JavaGenerator - daos : false
19:02:57.524 [main] INFO org.jooq.codegen.JavaGenerator - deprecated code : true
19:02:57.524 [main] INFO org.jooq.codegen.JavaGenerator - global references (any): true
19:02:57.525 [main] INFO org.jooq.codegen.JavaGenerator - global references (catalogs): true
19:02:57.525 [main] INFO org.jooq.codegen.JavaGenerator - global references (keys): true
19:02:57.525 [main] INFO org.jooq.codegen.JavaGenerator - global references (links): true
19:02:57.525 [main] INFO org.jooq.codegen.JavaGenerator - global references (queues): true
19:02:57.525 [main] INFO org.jooq.codegen.JavaGenerator - global references (routines): true
19:02:57.525 [main] INFO org.jooq.codegen.JavaGenerator - global references (schemas): true
19:02:57.525 [main] INFO org.jooq.codegen.JavaGenerator - global references (sequences): true
19:02:57.525 [main] INFO org.jooq.codegen.JavaGenerator - global references (tables): true
19:02:57.525 [main] INFO org.jooq.codegen.JavaGenerator - global references (udts): true
19:02:57.525 [main] INFO org.jooq.codegen.JavaGenerator - indexes : true
19:02:57.525 [main] INFO org.jooq.codegen.JavaGenerator - instance fields : true
19:02:57.525 [main] INFO org.jooq.codegen.JavaGenerator - interfaces : false
19:02:57.525 [main] INFO org.jooq.codegen.JavaGenerator - interfaces (immutable) : false
19:02:57.525 [main] INFO org.jooq.codegen.JavaGenerator - javadoc : true
19:02:57.525 [main] INFO org.jooq.codegen.JavaGenerator - keys : true
19:02:57.525 [main] INFO org.jooq.codegen.JavaGenerator - links : true
19:02:57.525 [main] INFO org.jooq.codegen.JavaGenerator - pojos : true
19:02:57.525 [main] INFO org.jooq.codegen.JavaGenerator - pojos (immutable) : false
19:02:57.525 [main] INFO org.jooq.codegen.JavaGenerator - queues : true
19:02:57.525 [main] INFO org.jooq.codegen.JavaGenerator - records : true
19:02:57.525 [main] INFO org.jooq.codegen.JavaGenerator - routines : true
19:02:57.525 [main] INFO org.jooq.codegen.JavaGenerator - sequences : true
19:02:57.525 [main] INFO org.jooq.codegen.JavaGenerator - table-valued functions : true
19:02:57.525 [main] INFO org.jooq.codegen.JavaGenerator - tables : true
19:02:57.525 [main] INFO org.jooq.codegen.JavaGenerator - udts : true
19:02:57.525 [main] INFO org.jooq.codegen.JavaGenerator - relations : true
19:02:57.525 [main] INFO org.jooq.codegen.JavaGenerator - ----------------------------------------------------------
19:02:57.525 [main] INFO org.jooq.codegen.JavaGenerator -
19:02:57.525 [main] INFO org.jooq.codegen.AbstractGenerator - Generation remarks
19:02:57.525 [main] INFO org.jooq.codegen.AbstractGenerator - ----------------------------------------------------------
19:02:57.525 [main] INFO org.jooq.codegen.JavaGenerator -
19:02:57.525 [main] INFO org.jooq.codegen.JavaGenerator - ----------------------------------------------------------
19:02:57.526 [main] INFO org.jooq.codegen.JavaGenerator - Generating catalogs : Total: 1
19:02:57.526 [main] INFO org.jooq.meta.AbstractDatabase - ARRAYs fetched : 0 (0 included, 0 excluded)
19:02:57.526 [main] INFO org.jooq.meta.AbstractDatabase - Enums fetched : 0 (0 included, 0 excluded)
19:02:57.526 [main] INFO org.jooq.meta.AbstractDatabase - Packages fetched : 0 (0 included, 0 excluded)
19:02:57.526 [main] INFO org.jooq.meta.AbstractDatabase - Routines fetched : 0 (0 included, 0 excluded)
19:02:57.526 [main] INFO org.jooq.meta.AbstractDatabase - Sequences fetched : 0 (0 included, 0 excluded)
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.jooq.tools.reflect.Reflect (file:/home/leslie/.m2/repository/org/jooq/jooq/3.12.1/jooq-3.12.1.jar) to constructor java.lang.invoke.MethodHandles$Lookup(java.lang.Class)
WARNING: Please consider reporting this to the maintainers of org.jooq.tools.reflect.Reflect
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
19:02:57.725 [main] INFO org.jooq.Constants -
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@ @@ @@@@@@@@@@
@@@@@@@@@@@@@@@@@@@@ @@@@@@@@@@
@@@@@@@@@@@@@@@@ @@ @@ @@@@@@@@@@
@@@@@@@@@@ @@@@ @@ @@ @@@@@@@@@@
@@@@@@@@@@ @@ @@@@@@@@@@
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@@@@@@@@@@ @@ @@@@@@@@@@
@@@@@@@@@@ @@ @@ @@@@ @@@@@@@@@@
@@@@@@@@@@ @@ @@ @@@@ @@@@@@@@@@
@@@@@@@@@@ @@ @ @ @@@@@@@@@@
@@@@@@@@@@ @@ @@@@@@@@@@
@@@@@@@@@@@@@@@@@@@@@@@ @@@@@@@@@@@@@
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ Thank you for using jOOQ 3.12.1
19:02:57.732 [main] DEBUG org.jooq.tools.LoggerListener - Executing query : select 1 one
19:02:57.788 [main] DEBUG org.jooq.tools.LoggerListener - Fetched result : +----+
19:02:57.788 [main] DEBUG org.jooq.tools.LoggerListener - : | one|
19:02:57.788 [main] DEBUG org.jooq.tools.LoggerListener - : +----+
19:02:57.788 [main] DEBUG org.jooq.tools.LoggerListener - : | 1|
19:02:57.788 [main] DEBUG org.jooq.tools.LoggerListener - : +----+
19:02:57.788 [main] DEBUG org.jooq.tools.LoggerListener - Fetched row(s) : 1
19:02:57.791 [main] DEBUG org.jooq.tools.LoggerListener - Executing query : select sqlite_master.name from sqlite_master where sqlite_master.type in (?, ?) order by sqlite_master.name
19:02:57.792 [main] DEBUG org.jooq.tools.LoggerListener - -> with bind values : select sqlite_master.name from sqlite_master where sqlite_master.type in ('table', 'view') order by sqlite_master.name
19:02:57.793 [main] DEBUG org.jooq.tools.LoggerListener - Fetched result : +----+
19:02:57.793 [main] DEBUG org.jooq.tools.LoggerListener - : |name|
19:02:57.793 [main] DEBUG org.jooq.tools.LoggerListener - : +----+
19:02:57.793 [main] DEBUG org.jooq.tools.LoggerListener - Fetched row(s) : 0
19:02:57.793 [main] INFO org.jooq.meta.AbstractDatabase - Tables fetched : 0 (0 included, 0 excluded)
19:02:57.793 [main] INFO org.jooq.meta.AbstractDatabase - UDTs fetched : 0 (0 included, 0 excluded)
19:02:57.793 [main] INFO org.jooq.codegen.JavaGenerator - Excluding empty catalog :
19:02:57.793 [main] INFO org.jooq.codegen.JavaGenerator - Removing excess files
Process finished with exit code 0
【问题讨论】：
【参考方案1】：如果您想使用DDLDatabase 所记录的in the link you've posted，您应该：
DDLDatabase 添加为数据库实现，以替换默认的SQLiteDatabase（源自您的JDBC 连接参数）。
换句话说，试试这个：
public static void runJooqCodeGen() throws Exception
// Removed this
/* String url = "jdbc:sqlite:";
String driver = "org.sqlite.JDBC"; */
Configuration configuration = new Configuration()/*.withJdbc(new Jdbc()
.withDriver(driver).withUrl(url))*/
.withGenerator(new Generator()
.withDatabase(new Database()
// Added this
.withName("org.jooq.meta.extensions.ddl.DDLDatabase")
.withProperties(new Property()
.withKey("scripts")
.withValue("src/main/resources/db/Schema.sql")))
.withGenerate(new Generate()
.withPojos(Boolean.TRUE)
.withDeprecationOnUnknownTypes(Boolean.FALSE))
.withTarget(new Target()
.withPackageName("me.leslie.generals.server.persistence.jooq")
.withDirectory("Generals-Server/src/main/java")));
GenerationTool.generate(configuration);
【讨论】：
非常感谢。这有帮助。此外，我必须将 sql 文件的路径更改为"/db/Schema.sql"，然后一切都按预期工作。
@Leslie：澄清一下：/dbSchema.sql 符号将在类路径中查找文件。 src/main/resources/db/Schema.sql 表示法将从执行目录中查找它，该目录可能在您认为的位置，也可能不在。您还可以使用**/ 和*/ 通配符。以上是关于如何修复：Jooq 代码不会从 sql 脚本为内存 db 中的 sqlite 生成 java 代码的主要内容，如果未能解决你的问题，请参考以下文章
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