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引入shardingjdbc,将小说内容表分为10个小表

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xiongxiaoyang
2020-05-26 18:09:19 +08:00
parent 06bf848e99
commit f9f1e474ec
9 changed files with 336 additions and 16 deletions
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2
novel-common/src/main/java/com/java2nb/novel/mapper/BookContentDynamicSqlSupport.java
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@ -24,7 +24,7 @@ public final class BookContentDynamicSqlSupport {
public final SqlColumn<Long> indexId = column("index_id", JDBCType.BIGINT);
public final SqlColumn<String> content = column("content", JDBCType.LONGVARCHAR);
public final SqlColumn<String> content = column("content", JDBCType.VARCHAR);
public BookContent() {
super("book_content");

2
novel-common/src/main/java/com/java2nb/novel/mapper/BookContentMapper.java
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@ -63,7 +63,7 @@ public interface BookContentMapper {
@Results(id="BookContentResult", value = {
@Result(column="id", property="id", jdbcType=JdbcType.BIGINT, id=true),
@Result(column="index_id", property="indexId", jdbcType=JdbcType.BIGINT),
@Result(column="content", property="content", jdbcType=JdbcType.LONGVARCHAR)
@Result(column="content", property="content", jdbcType=JdbcType.VARCHAR)
})
List<BookContent> selectMany(SelectStatementProvider selectStatement);

56
novel-common/src/main/resources/application-common-dev.yml
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@ -1,11 +1,57 @@
spring:
profiles:
include: [common]
datasource:
url: jdbc:mysql://127.0.0.1:3306/novel_plus?useUnicode=true&characterEncoding=utf-8&useSSL=false&serverTimezone=Asia/Shanghai
username: root
password: test123456
driver-class-name: com.mysql.cj.jdbc.Driver
main:
allow-bean-definition-overriding: true
# datasource:
# url: jdbc:mysql://127.0.0.1:3306/novel_plus?useUnicode=true&characterEncoding=utf-8&useSSL=false&serverTimezone=Asia/Shanghai
# username: root
# password: test123456
# driver-class-name: com.mysql.cj.jdbc.Driver
shardingsphere:
datasource:
names: master
####使用shardingJdbc时，
####所有的jdbcType都不能是LONGVARCHAR,否则会导致java.io.NotSerializableException: java.io.StringReader错误
##### 应该替换所有的 LONGVARCHAR 类型为VARCHAR
sharding:
jdbc:
datasource:
names: ds0 #,ds1
ds0:
type: com.zaxxer.hikari.HikariDataSource
driver-class-name: com.mysql.cj.jdbc.Driver
jdbc-url: jdbc:mysql://localhost:3306/novel_plus?useUnicode=true&characterEncoding=utf-8&useSSL=false&serverTimezone=Asia/Shanghai
username: root
password: test123456
# ds1:
# type: com.alibaba.druid.pool.DruidDataSource
# driver-class-name: com.mysql.jdbc.Driver
# url: jdbc:mysql://localhost:3306/novel_plus2
# username: root
# password: test123456
config:
sharding:
props:
sql.show: true
tables:
book_content: #book_content表
key-generator-column-name: id #主键
actual-data-nodes: ds${0}.book_content${0..9} #数据节点
# database-strategy: #分库策略
# inline:
# sharding-column: book_id
# algorithm-expression: ds${book_id % 10}
table-strategy: #分表策略
inline:
shardingColumn: index_id
algorithm-expression: book_content${index_id % 10}
#Redis服务器IP
redis:
host: 127.0.0.1