docs: 更新一些文档

Author: biggates

doc/Query.md

@@ -1,6 +1,6 @@
 # Why #
 
-I use DataTables in some projects and wrote SpringMVC server side for it. Later the frontend is rewritten and DataTables is no longer used. Now is the time to refine the protocol for general data-grid query. 
+I use DataTables in some projects and wrote SpringMVC server side for it. Later the frontend is rewritten and DataTables is no longer used. Now is the time to refine the protocol for general data-grid query.
 
 * You can not assign a range via `columns[i][search][value]`, as in SQL: `BETWEEN`.
 * You can only do regular search OR regex search via `columns[i][search][regex]`, but not `=`, `LIKE`.
@@ -34,7 +34,8 @@ HTTP POST as `@RequestBody` is recommended:
             "_like": "",
             "_exists": true,
             "_isNull": true,
-            "_isEmpty": true
+            "_isEmpty": true,
+            "_isvlid": true
         }
     }
 }
@@ -56,7 +57,7 @@ e.g. NO parameters are needed.
 
 ### Pagination ###
 
-Paging is controlled by `offset` and `limit`, which keeps the same as `SKIP` and `LIMIT` in SQL. 
+Paging is controlled by `offset` and `limit`, which keeps the same as `SKIP` and `LIMIT` in SQL.
 
 ```http
 POST /search
@@ -82,7 +83,7 @@ POST /search
 }
 ```
 
-Ordering by more columns: 
+Ordering by more columns:
 
 ```http
 POST /search

doc/Query.zh-CN.md

@@ -34,7 +34,8 @@
             "_like": "",
             "_exists": true,
             "_isNull": true,
-            "_isEmpty": true
+            "_isEmpty": true,
+            "_isvoid": true
         }
     }
 }

eaphone-spring-data-query-samples/README.md

@@ -4,25 +4,25 @@ This is a simple Spring Boot project using [biggates/eaphone-spring-data-query](
 
 The original sample project is [darrachequesne/spring-data-jpa-datatables-sample](https://github.com/darrachequesne/spring-data-jpa-datatables-sample).
 
-## How to run ##
+## How to run
 
 (Not verified)
 
-```
+```bash
 mvn spring-boot:run
 ```
 
 The project will start at `http://localhost:8080/`.
 
-## What is this? ##
+## What is this?
 
 This project shows how to use eaphone-spring-data-query in your project, and a very basic version of JavaScript grid.
 
 The web page contains three parts: request (and examples), raw response and rendered grid.
 
 ![screen cast](../doc/quickview.gif)
 
-## Features ##
+## Features
 
 The page contains one data grid, with some pre-defined searching values.
 
@@ -33,37 +33,37 @@ On the page you can try the following features:
 * Change order by any single column
 * Pagination
 
-## Some details ##
+## Some details
 
 * During the starting process, it inserts `200` completely random rows of `Order` item in `OrderRestController#insertSampleData()`, plus 2 specific `Order` item, in order to provide at least one search result in pre-defined queries.
-* The project serves a static web page, displaying a grid using DataTables. The detailed initialization script is in `/index.js`. 
+* The project serves a static web page, displaying a grid using DataTables. The detailed initialization script is in `/index.js`.
 
-### jpa ###
+### jpa
 
 * An [H2](http://www.h2database.com/html/main.html) in-memory database is created.
 
-### mongodb ###
+### mongodb
 
 * This project uses [bwaldvogel/mongo-java-server](https://github.com/bwaldvogel/mongo-java-server) to create an in-memory MongoDB server named `test` (see `MongodbSampleApplication$Config`).
 
-* The params `startDate` and `endDate` is used to restrict the range of a value. DataTables only handles "match" type of search, which is usually not enough. The criteria and `preFiltering` is used to further define a criteria.  
+* The params `startDate` and `endDate` is used to restrict the range of a value. DataTables only handles "match" type of search, which is usually not enough. The criteria and `preFiltering` is used to further define a criteria.
 
-## Usage in your project ##
+## Usage in your project
 
 If you want to use `eaphone-spring-data-query` in your own project, these steps must be done:
 
 1. Include the library in your project (it's not in any public Maven repository yet)
 2. Declare a spring-data repo, extending `JpaQueryRepository<EntityType, KeyType>` or `MongoDBQueryRepository<DocumentType, KeyType>`
-3. Create your controller, basically as: 
+3. Create your controller, basically as:
 
-```
-    @Autowired
-    private OrderRepo repo;
+    ```java
+        @Autowired
+        private OrderRepo repo;
 
-    @GetMapping()
-    public QueryOutput<Order> getOrders(@Valid QueryInput input){
-        return repo.findAll(input);
-    }
-```
+        @GetMapping()
+        public QueryOutput<Order> getOrders(@Valid QueryInput input){
+            return repo.findAll(input);
+        }
+    ```
 
 4. Write your JavaScript for the datagrid.