Package com.twl.xg.config

Class AppConfig

java.lang.Object

com.twl.xg.config.AppConfig

All Implemented Interfaces:

org.springframework.web.servlet.config.annotation.WebMvcConfigurer

@EnableWebMvc
@Configuration
@EnableTransactionManagement
@PropertySource("classpath:app_custom.properties")
@ComponentScan(basePackages={"com.twl.xg.controller","com.twl.xg.service","com.twl.xg.dao","com.twl.xg.domain","com.twl.xg.service.mock_impl","com.twl.xg.service.impl"})
public class AppConfig
extends java.lang.Object
implements org.springframework.web.servlet.config.annotation.WebMvcConfigurer

Using this class to customize Spring MVC configuration. Notice that in Spring 4, we need to extend WebMvcConfigurerAdapter to do this, but since we are using Spring 5, which supports Java 8, the empty implementations of configuration methods has been moved to WebMvcConfigurer interface, we just need to implement this interface.

Also, we register the dataTypeList bean in this class.

Version:

1.0

Author:

Xiaozheng Guo

Field Summary

Fields

Modifier and Type	Field	Description
private org.springframework.core.env.Environment	env
private static org.apache.log4j.Logger	logger
private PropertyService	propertyService

Constructor Summary

Constructors

Constructor	Description
AppConfig()

Method Summary

Modifier and Type	Method	Description
java.util.List<java.lang.String>	addBeanDataTypeList()	Register spring bean of dataTypeList, this is the data types that we need to fetch from each sensor.
void	addResourceHandlers(org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry registry)	Configure the ResourceHandler, enable access to static html, js, css.etc files in /resources/ folder.
void	addViewControllers(org.springframework.web.servlet.config.annotation.ViewControllerRegistry registry)	Configure simple automated controllers pre-configured with the response status code and/or a view to render the response body.
org.springframework.web.servlet.ViewResolver	jspViewResolver()	Create an internalResourceViewResolver bean.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.springframework.web.servlet.config.annotation.WebMvcConfigurer

addArgumentResolvers, addCorsMappings, addFormatters, addInterceptors, addReturnValueHandlers, configureAsyncSupport, configureContentNegotiation, configureDefaultServletHandling, configureHandlerExceptionResolvers, configureMessageConverters, configurePathMatch, configureViewResolvers, extendHandlerExceptionResolvers, extendMessageConverters, getMessageCodesResolver, getValidator

Field Detail

logger

private static final org.apache.log4j.Logger logger

env

@Autowired
private org.springframework.core.env.Environment env

propertyService

@Autowired
private PropertyService propertyService

Constructor Detail

AppConfig

public AppConfig()

Method Detail

jspViewResolver

@Bean
public org.springframework.web.servlet.ViewResolver jspViewResolver()

Create an internalResourceViewResolver bean. This ViewResolver is responsible for locating the jsp files in WEB-INF/jsp folder.

Returns:

ViewResolver view resolver

addViewControllers

public void addViewControllers(org.springframework.web.servlet.config.annotation.ViewControllerRegistry registry)

Configure simple automated controllers pre-configured with the response status code and/or a view to render the response body. This is useful in cases where there is no need for custom controller logic -- e.g. render a home page, perform simple site URL redirects, return a 404 status with HTML content, a 204 with no content, and more. In this implementation, this method redirects the root url ":" to the index page which is the index.jsp file in WEB-INF/jsp folder.

Specified by:

addViewControllers in interface org.springframework.web.servlet.config.annotation.WebMvcConfigurer

addResourceHandlers

public void addResourceHandlers(org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry registry)

Configure the ResourceHandler, enable access to static html, js, css.etc files in /resources/ folder.

Specified by:

addResourceHandlers in interface org.springframework.web.servlet.config.annotation.WebMvcConfigurer

addBeanDataTypeList

@Bean("dataTypeList")
public java.util.List<java.lang.String> addBeanDataTypeList()

Register spring bean of dataTypeList, this is the data types that we need to fetch from each sensor. For example, [temperature, humidity, lightness].

The default data type list will loaded from database first, if there is no record in database, it will be loaded from "app_custom.properties" file.

Returns:

List of data types

Throws:

java.lang.RuntimeException - if there is no dataTypeList in either of database and properties file.