Java for Web Learning Notes (116): Spring Data (4) Pagination example (top) __java

Example Description

In the example, we'll learn how to page through the user's comments. Join Spring Data Introducing Jar Packs

Join spring data to introduce in POM

<dependency>
    <groupId>org.springframework.data</groupId>
    <artifactId> spring-data-jpa</artifactid>
    <version>1.11.10.RELEASE</version>
</dependency>

configuration in the root context

@Configuration
@EnableAsync (mode = Advicemode.proxy, Proxytargetclass = false, order = ordered.highest_precedence)
@EnableTransactionManagement (mode = Advicemode.proxy, Proxytargetclass = false, order = Ordered.lowest_precedence )
@EnableJpaRepositories (basepackages = "Cn.wei.flowingflying.customer_support.site.repositories",
                        Entitymanagerfactoryref = "Entitymanagerfactorybean",
                        transactionmanagerref = "Jpatransactionmanager"
)
@EnableScheduling
@ComponentScan (basepackages = "Cn.wei.flowingflying.customer_support.site",
                Excludefilters = @ComponentScan. Filter ({controller.class,controlleradvice.class,endpoint.class})) Public
Class Rootcontextconfiguration implements Asyncconfigurer, schedulingconfigurer{
    ...
}

configuration in the Dispatchservlet context

Simply add @enablespringdatawebsupport, and in the example, we'll use code to customize the setup.

@Configuration @EnableWebMvc @ComponentScan (basepackages = "Cn.wei.flowingflying.customer_support.site", Usedefaultfilters = False, Includefilters = @ComponentScan. Filter (Webcontroller.class)) public class Webse	
    Rvletcontextconfiguration extends webmvcconfigureradapter{private static final Logger log = Logmanager.getlogger ();
    @Inject private ApplicationContext ApplicationContext; ...//"1" sorthandlermethodargumentresolver, the sort parameter in the conversion request//"2" pageablehandlermethodargumentresolver, in the conversion request
       pageable parameter @Override public void Addargumentresolvers (list 
If you have more than one dispatchservlet, and if you need to use paging and sorting, we also make the corresponding settings, the relevant default parameters are different, the code example is as follows:


@Configuration @EnableWebMvc @ComponentScan (basepackages = "Cn.wei.flowingflying.customer_support.site", Usedefaultfilters = False, Includefilters = @ComponentScan. Filter ({restendpoint.class, restendpointadvice. Class})) public class Restservletcontextconfiguration extends webmvcconfigureradapter{private static final Logger Lo
    g = Logmanager.getlogger ();
    @Inject ApplicationContext ApplicationContext;
        ... @Override public void addargumentresolvers (list 
For restful interface paging information in addition to the URL, such as Http://localhost:8080/persons?page=1&size=5&sort, you can also use the HTTP Range headers:range, Content-range, If-range, accept-ranges, and related return code: 206 (Partial Content) 413 (Request Entity Too Large) 416 (requested Range Not satisfiable).



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