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reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["dynamic","java","mybatis","sql"],"created_at":"2026-01-27T00:40:09.831Z","updated_at":"2026-01-27T00:40:10.365Z","avatar_url":"https://github.com/wz2cool.png","language":"Java","funding_links":[],"categories":[],"sub_categories":[],"readme":"MyBatis Dynamic Query\r\n=====================================\r\n\r\n[![License](http://img.shields.io/:license-apache-brightgreen.svg)](http://www.apache.org/licenses/LICENSE-2.0.html)\r\n[![Build Status](https://github.com/wz2cool/mybatis-dynamic-query/actions/workflows/webpack.yml/badge.svg?branch=master)](https://github.com/wz2cool/mybatis-dynamic-query/actions/workflows/webpack.yml)\r\n[![Coverage Status](https://coveralls.io/repos/github/wz2cool/mybatis-dynamic-query/badge.svg?branch=master)](https://coveralls.io/github/wz2cool/mybatis-dynamic-query?branch=master)\r\n[![Dependency Status](https://www.versioneye.com/user/projects/597283ce368b08005906060c/badge.svg?style=flat-square)](https://www.versioneye.com/user/projects/597283ce368b08005906060c)\r\n[![Maven Central](https://img.shields.io/maven-central/v/com.github.wz2cool/mybatis-dynamic-query.svg)](https://central.sonatype.com/artifact/com.github.wz2cool/mybatis-dynamic-query)   \r\n\r\nThe MyBatis Dynamic Query framework makes it easier to generate \"where\" and \"order\" expression dynamically in mapper xml.\r\n\u003cb\u003emybatis-dynamic-query comes to solve four problem:\u003c/b\u003e\r\n- no need write lots of code in xml.\r\n- filtering or sorting maintained by java code.\r\n- hot update \"where\" and \"order\" expression. \r\n- save filter or sort descriptor and re-use them.\r\n\r\n## Docs\r\n[中文文档1.x](https://wz2cool.gitbooks.io/mybatis-dynamic-query-zh-cn/content/)\r\n|\r\n[中文文档2.x](https://wz2cool.gitbooks.io/mybatis-dynamic-query-2-0-zh-cn/content/)\r\n\r\n## Database support\r\n- H2\r\n- MySql\r\n- SqlServer\r\n- Postresql\r\n- Oracle (TODO)\r\n\r\n## Maven\r\n```xml\r\n\u003cdependency\u003e\r\n    \u003cgroupId\u003ecom.github.wz2cool\u003c/groupId\u003e\r\n    \u003cartifactId\u003emybatis-dynamic-query\u003c/artifactId\u003e\r\n    \u003cversion\u003e2.0.11\u003c/version\u003e\r\n\u003c/dependency\u003e\r\n```\r\n\r\n## Dynamic Query example\r\n- create two tables by sql.\r\n```sql\r\nDELETE FROM category;\r\nINSERT INTO category (category_id, category_name, description) VALUES\r\n  (1, 'Beverages', 'test'),\r\n  (2, 'Condiments', 'test'),\r\n  (3, 'Oil', 'test');\r\n\r\nDELETE FROM product;\r\nINSERT INTO product (product_id, category_id, product_name, price) VALUES\r\n  (1, 1, 'Northwind Traders Chai', 18.0000),\r\n  (2, 2, 'Northwind Traders Syrup', 7.5000),\r\n  (3, 2, 'Northwind Traders Cajun Seasoning', 16.5000),\r\n  (4, 3, 'Northwind Traders Olive Oil', 16.5000);\r\n```\r\n- create a model map to this table.\r\n```java\r\npublic class ProductView {\r\n    @Column(name = \"product_id\", table = \"product\")\r\n    private Long productId;\r\n    @Column(name = \"product_name\", table = \"product\")\r\n    private String productName;\r\n    @Column(name = \"price\", table = \"product\")\r\n    private BigDecimal price;\r\n\r\n    @Column(name = \"category_id\", table = \"category\")\r\n    private Long categoryId;\r\n    @Column(name = \"category_name\", table = \"category\")\r\n    private String categoryName;\r\n    @Column(name = \"description\", table = \"category\")\r\n    private String description;\r\n\r\n    // get, set method.\r\n}\r\n```\r\n- create a dynamic select in mapper interface / xml.\r\n```java\r\nList\u003cProductView\u003e getProductViewsByDynamic(Map\u003cString, Object\u003e params);\r\n```\r\n```xml\r\n\u003cselect id=\"getProductViewsByDynamic\" parameterType=\"java.util.Map\"\r\n        resultType=\"com.github.wz2cool.dynamic.mybatis.db.model.entity.view.ProductView\"\u003e\r\n    SELECT\r\n    \u003cchoose\u003e\r\n        \u003cwhen test=\"columnsExpression != null and columnsExpression !=''\"\u003e\r\n            ${columnsExpression}\r\n        \u003c/when\u003e\r\n        \u003cotherwise\u003e\r\n            *\r\n        \u003c/otherwise\u003e\r\n    \u003c/choose\u003e\r\n    FROM product LEFT JOIN category ON product.category_id = category.category_id\r\n    \u003cif test=\"whereExpression != null and whereExpression != ''\"\u003eWHERE ${whereExpression}\u003c/if\u003e\r\n    \u003cif test=\"orderByExpression != null and orderByExpression != ''\"\u003eORDER BY ${orderByExpression}\u003c/if\u003e\r\n\u003c/select\u003e\r\n```\r\n- generate expression and param map (NOTE: expression string also put into map).\r\n```java\r\n@Test\r\npublic void testMultiTablesFilter() throws Exception {\r\n    FilterDescriptor priceFilter1 =\r\n            new FilterDescriptor(ProductView.class, ProductView::getPrice,\r\n                    FilterOperator.GREATER_THAN_OR_EQUAL, 6);\r\n    FilterDescriptor priceFilter2 =\r\n            new FilterDescriptor(ProductView.class, ProductView::getPrice,\r\n                    FilterOperator.LESS_THAN, 10);\r\n    FilterDescriptor categoryNameFilter =\r\n            new FilterDescriptor(ProductView.class, ProductView::getCategoryName,\r\n                    FilterOperator.START_WITH, \"Co\");\r\n\r\n    SortDescriptor idDescSort =\r\n            new SortDescriptor(ProductView.class, ProductView::getProductID, SortDirection.DESC);\r\n\r\n    Map\u003cString, Object\u003e params =\r\n            // NOTE: we recommend you to set \"columnsExpressionPlaceholder\"\r\n            // in case of duplicated column name in two tables.\r\n            // 这里你也可以不给列的站位，但是推荐使用，防止两个表有重复的名字\r\n            MybatisQueryProvider\r\n                    .createInstance(ProductView.class, \"columnsExpression\")\r\n                    .addFilters(\"whereExpression\",\r\n                            priceFilter1, priceFilter2, categoryNameFilter)\r\n                    .addSorts(\"orderByExpression\", idDescSort)\r\n                    .toQueryParam();\r\n\r\n    List\u003cProductView\u003e result = northwindDao.getProductViewsByDynamic(params);\r\n    assertEquals(true, result.size() \u003e 0);\r\n}\r\n```\r\noutput result\r\n```bash\r\n==\u003e  Preparing: SELECT product.product_id AS product_id, product.price AS price, category.description AS description, category.category_name AS category_name, product.product_name AS product_name, category.category_id AS category_id \r\nFROM product LEFT JOIN category ON product.category_id = category.category_id WHERE (product.price \u003e= ? AND product.price \u003c ? AND category.category_name LIKE ?) \r\n==\u003e Parameters: 6(Integer), 10(Integer), Co%(String)\r\n\u003c==    Columns: PRODUCT_ID, PRICE, DESCRIPTION, CATEGORY_NAME, PRODUCT_NAME, CATEGORY_ID\r\n\u003c==        Row: 2, 7.5000, test, Condiments, Northwind Traders Syrup, 2\r\n\u003c==      Total: 1\r\n```\r\n\r\n## Dynamic Query Mapper\r\nDynamicQueryMapper is based on tk.mybatis.mapper.\r\n### spring boot configuration\r\n1. add dependency\r\n```xml\r\n\u003c!-- base --\u003e\r\n\u003cdependency\u003e\r\n    \u003cgroupId\u003ecom.github.wz2cool\u003c/groupId\u003e\r\n    \u003cartifactId\u003emybatis-dynamic-query\u003c/artifactId\u003e\r\n    \u003cversion\u003e2.0.2\u003c/version\u003e\r\n\u003c/dependency\u003e\r\n\u003c!-- register mapper --\u003e\r\n\u003cdependency\u003e\r\n    \u003cgroupId\u003etk.mybatis\u003c/groupId\u003e\r\n    \u003cartifactId\u003emapper-spring-boot-starter\u003c/artifactId\u003e\r\n    \u003cversion\u003e1.1.3\u003c/version\u003e\r\n\u003c/dependency\u003e\r\n\u003c!-- mybatis --\u003e\r\n\u003cdependency\u003e\r\n    \u003cgroupId\u003eorg.mybatis\u003c/groupId\u003e\r\n    \u003cartifactId\u003emybatis\u003c/artifactId\u003e\r\n    \u003cversion\u003e3.4.4\u003c/version\u003e\r\n\u003c/dependency\u003e\r\n\u003cdependency\u003e\r\n    \u003cgroupId\u003eorg.mybatis.spring.boot\u003c/groupId\u003e\r\n    \u003cartifactId\u003emybatis-spring-boot-starter\u003c/artifactId\u003e\r\n    \u003cversion\u003e1.3.0\u003c/version\u003e\r\n\u003c/dependency\u003e\r\n\u003c!-- spring boot web already has jackson--\u003e\r\n\u003c!--  \u003cdependency\u003e\r\n    \u003cgroupId\u003ecom.fasterxml.jackson.core\u003c/groupId\u003e\r\n    \u003cartifactId\u003ejackson-databind\u003c/artifactId\u003e\r\n    \u003cversion\u003e2.9.0\u003c/version\u003e\r\n\u003c/dependency\u003e--\u003e\r\n\u003c!-- spring boot --\u003e\r\n\u003cdependency\u003e\r\n    \u003cgroupId\u003eorg.springframework.boot\u003c/groupId\u003e\r\n    \u003cartifactId\u003espring-boot-starter-web\u003c/artifactId\u003e\r\n\u003c/dependency\u003e\r\n\u003cdependency\u003e\r\n    \u003cgroupId\u003eorg.springframework.boot\u003c/groupId\u003e\r\n    \u003cartifactId\u003espring-boot-starter-aop\u003c/artifactId\u003e\r\n\u003c/dependency\u003e\r\n\u003cdependency\u003e\r\n    \u003cgroupId\u003eorg.mybatis.spring.boot\u003c/groupId\u003e\r\n    \u003cartifactId\u003emybatis-spring-boot-starter\u003c/artifactId\u003e\r\n    \u003cversion\u003e1.2.0\u003c/version\u003e\r\n\u003c/dependency\u003e\r\n```\r\n2. register DynamicQueryMapper in `application.properties` file.\r\n```bash\r\nmapper.mappers[0]=com.github.wz2cool.dynamic.mybatis.mapper.DynamicQueryMapper\r\n```\r\n3. scan mappers.\r\n```java\r\n@SpringBootApplication\r\n@MapperScan(basePackages = \"com.github.wz2cool.mdqtest.mapper\")\r\n@EnableSwagger2\r\npublic class Application {\r\n    public static void main(String[] args) {\r\n        SpringApplication.run(Application.class, args);\r\n    }\r\n}\r\n```\r\n### create mapper \r\n```java\r\npublic interface ProductDao extends DynamicQueryMapper\u003cProduct\u003e {\r\n}\r\n```\r\n![](https://raw.githubusercontent.com/wz2cool/markdownPhotos/master/res/20170815143538.png?_=7365737)\r\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fwz2cool%2Fmybatis-dynamic-query","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fwz2cool%2Fmybatis-dynamic-query","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fwz2cool%2Fmybatis-dynamic-query/lists"}