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add join as（lambdaGetter）support

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开源海哥 2023-05-19 19:24:02 +08:00
parent e0e5cebebb
commit 318a5e6d55
1 changed files with 5 additions and 2 deletions
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7
docs/zh/base/query.md
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@ -97,10 +97,10 @@ public class ArticleDTO {
} }
``` ```
那么， `QueryWrapper` 需要添加 as，修改如下： 那么， `QueryWrapper` 需要添加 `as`，修改如下：
```java 3,4 ```java 3,4
QueryWrapper asWrapper = QueryWrapper.create() QueryWrapper query = QueryWrapper.create()
.select(ARTICLE.ALL_COLUMNS) .select(ARTICLE.ALL_COLUMNS)
.select(ACCOUNT.USER_NAME.as(ArticleDTO::getAuthorName) .select(ACCOUNT.USER_NAME.as(ArticleDTO::getAuthorName)
,ACCOUNT.AGE.as(ArticleDTO::getAuthorAge) ,ACCOUNT.AGE.as(ArticleDTO::getAuthorAge)
@ -109,6 +109,9 @@ QueryWrapper asWrapper = QueryWrapper.create()
.from(ARTICLE) .from(ARTICLE)
.leftJoin(ACCOUNT).on(ARTICLE.ACCOUNT_ID.eq(ACCOUNT.ID)) .leftJoin(ACCOUNT).on(ARTICLE.ACCOUNT_ID.eq(ACCOUNT.ID))
.where(ACCOUNT.ID.ge(0)); .where(ACCOUNT.ID.ge(0));
List<ArticleDTO> results = mapper.selectListByQueryAs(query, ArticleDTO.class);
System.out.println(results);
``` ```