ywlcn commented 5 years ago

Web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
    <display-name>springMVC</display-name>

    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <servlet>
        <servlet-name>dispatcherServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextClass</param-name>
            <param-value>org.springframework.web.context.support.AnnotationCofingWebApplicationContext</param-value>
        </init-param>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>/WEB-INF/spring/mvc-servlet.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
        <async-supported>true</async-supported> <!-- 非同期设置 -->
    </servlet>

    <servlet-mapping>
        <servlet-name>dispatcherServlet</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/spring/app.xml</param-value>
    </context-param>

    <filter>
        <filter-name>CharacterEncodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <async-supported>true</async-supported> <!-- 非同期设置 -->
        <init-param>
            <param-name>encoding</param-name>
            <param-value>utf-8</param-value>
        </init-param>
        <init-param>
            <param-name>forceEncoding</param-name>
            <param-value>true</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>CharacterEncodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
        <dispatcher>REQUEST</dispatcher>
        <dispatcher>ASYNC</dispatcher> <!-- 非同期设置 -->
    </filter-mapping>

    <!-- Enables the Spring MVC @Controller programming model -->
    <annotation-driven />

    <!-- Resolves views selected for rendering by @Controllers to .jsp resources
        in the /WEB-INF/views directory -->
    <beans:bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <beans:property name="prefix" value="/WEB-INF/views/" />
        <beans:property name="suffix" value=".jsp" />
    </beans:bean>

    <!--  非同期设置 -->
    <mvc:annotation-driven>
        <mvc:async-support default=“5000” />
    </mvc:annotation-driven>

    <!-- 静态资源请求的设定 -->
    <!-- 方法1     -->
    <!-- Handles HTTP GET requests for /resources/** by efficiently serving
        up static resources in the ${webappRoot}/resources directory -->
    <resources mapping="/resources/**" location="/resources/"  cache-period="604800"/>
    <mvc:cachecontrol>
    <!-- 方法2  -->
    <!--  会在Spring MVC上下文中定义一个org.springframework.web.servlet.resource.DefaultServletHttpRequestHandler，它会像一个检查员，对进入DispatcherServlet的URL进行筛查，如果发现是静态资源的请求，就将该请求转由Web应用服务器默认的Servlet处理，如果不是静态资源的请求，才由DispatcherServlet继续处理。 -->
<mvc:default-servlet-handler>

    <!--  函数参数转换 -->
<mvc:annotation-driven>
    <mvc:argument-resolvers>
        <bean class="・・・・.CustomerHandlerMethodArgumentResolver "/>
    </mvc:argument-resolvers>
</mvc:annotation-driven>

<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter">   
   <!--线程安全的访问session-->  
    <property name="synchronizeOnSession" value="true"/>   
    <property name="customArgumentResolvers">  
       <list>  
          <bean class="・・・・.RequestJsonParamMethodArgumentResolver"/>  
          <bean class="・・・・.FormModelMethodArgumentResolver"/>  
       </list>  
    </property>  
</bean>    

    <!-- -->
    <context:component-scan base-package="com.example.XXXXXX" />

    <jsp-config>
        <jsp-property-group>
            <url-pattern>*.jsp</url-pattern>
            <page-encoding>UTF-8</page-encoding>
            <!-- 所有的JSP裏面都會加上這個文件裏面的東西  -->
            <include-prelude>/WEB-INF/include.jsp</include-prelude>
        </jsp-property-group>
    </jsp-config>

</web-app>

缓存控制：

WebContentInterceptor

<mvc:interceptors>
...
<bean class="org.springframework.web.servlet.mvc.WebContentInterceptor" p:cacheSeconds="0" p:alwaysUseFullPath="true" >
<property name="cacheMappings">
    <props>
        <!-- cache for one month -->
        <prop key="/cache/me/**">2592000</prop>
        <!-- don't set cache headers -->
        <prop key="/cache/agnostic/**">-1</prop>
    </props>
</property>
</bean>
...
</mvc:interceptors>

CacheControlHandlerInterceptor
CacheControl

response.setHeader("Cache-Control", "no-cache");

return ResponseEntity.ok() .cacheControl(CacheControl.maxAge(20, TimeUnit.SECONDS)) .body(body);

ywlcn commented 5 years ago

DispatcherServlet

HandlerExceptionResolver

LocaleResolver

LocaleContextResolver

ThemeResolver

FlashMapManager

RequestToViewNameTranslator

HandlerInterceptor

MultipartResolver

ywlcn commented 5 years ago

HandlerMapping

HandlerAdapter

HandlerMethodArgumentResolver

public class CustomerHandlerMethodArgumentResolver implement HandlerMethodArgumentResolver{

    // 支持的类型判断用
    @Override
    public boolean supportsParameter(MethodParameter parameter) {
        return UserData.class.isAssignableFrom(parameter.getParameterType());
    }

    // Request参数绑定
    @Override
    public Object resolveArgument(MethodParameter parameter
                                , ModelAndViewContainer container
                                , NativeWebRequest request
                                , WebDataBinderFactory factory) throws Exception {

        ///////
        return userData;
    }
}

使用例子

HandlerMethodReturnValueHandler

ViewResolver

InternalResourceViewResolver
BeanNameViewResolver

View

InternalResourceView
JstlView

public class RequestHeaderModelAttributeMethodProcessor extends ModelAttributeMethodProcessor {

    // 构造函数
    public RequestHeaderModelAttributeMethodProcessor() {
        super(true);
    }

    // 支持的类型判断用
    @Override
    public boolean supportsParameter(MethodParameter parameter) {
        return RequestHeader.class.isAssignableFrom(parameter.getParameterType());
    }

    // Request参数绑定
    @Override
    protected void bindRequestParameters(WebDataBinder binder, NativeWebRequest request) {

        MutablePropertyValues pvs = new MutablePropertyValues();
        pvs.addPropertyValue("userAgent", request.getHeader("user-agent"));
        pvs.addPropertyValue("accept", request.getHeader("accept"));
        pvs.addPropertyValue("acceptLanguage", request.getHeader("accept-language"));
        pvs.addPropertyValue("acceptEncoding", request.getHeader("accept-encoding"));
        binder.bind(pvs);
    }
}

ywlcn commented 5 years ago

Controller 可以使用的注释参数

@PathVariable /api/get/1のように、REST形式のURIからパラメータを取るのに利用します。
@MetrixVariable PathVariable类似? 默认设置的情况下不能使用需要修改配置?
@RequestParamアノテーションを指定すると、URLに含まれるクエリパラメータや、メッセージボディーに含まれるポストパラメータを受け取ることができます。
@RequestHeader リクエストヘッダを受け取ります。
@CookieValue クッキーの値を受け取ります。
@Requestbodyリクエストのボディを受け取ることができます。
@RequestAttribute はHttpServletRequestオブジェクトから取得される
@Value
@ModelAttribute
@SessionAttribute 从HttpSession取得的情报
@RequestAttribute 从HttpServletRequest取得的情报

ywlcn commented 5 years ago

JSP EL式可以使用的默认结构体

pageScope
requestScope
sessionScope
applicationScope
param / paramValues
header / headerValues
cookie
initParam response

ywlcn commented 5 years ago

SpringMVC Exception Handler

ExceptionHandlerExceptionResolver

ResponseStatusExceptionResolver

DefaultHanlderExceptionHandler

编号	例外	HTTP Status Code
(1)	org.springframework.web.servlet.mvc.multiaction.NoSuchRequestHandlingMethodException	404
(2)	org.springframework.web.HttpRequestMethodNotSupportedException	405
(3)	org.springframework.web.HttpMediaTypeNotSupportedException	415
(4)	org.springframework.web.HttpMediaTypeNotAcceptableException	406
(5)	org.springframework.web.bind.MissingPathVariableException	500
(6)	org.springframework.web.bind.MissingServletRequestParameterException	400
(7)	org.springframework.web.bind.ServletRequestBindingException	400
(8)	org.springframework.beans.ConversionNotSupportedException	500
(9)	org.springframework.beans.TypeMismatchException	400
(10)	org.springframework.http.converter.HttpMessageNotReadableException	400
(11)	org.springframework.http.converter.HttpMessageNotWritableException	500
(12)	org.springframework.web.bind.MethodArgumentNotValidException	400
(13)	org.springframework.web.multipart.support.MissingServletRequestPartException	400
(14)	org.springframework.validation.BindException	400
(15)	org.springframework.web.servlet.NoHandlerFoundException	404

ControllerAdvice 全局Controller Exception捕获


@ControllerAdvice
public class ExceptionHandler {

    @ResponseStatus(HttpStatus.METHOD_NOT_ALLOWED)
    @org.springframework.web.bind.annotation.ExceptionHandler({ HttpRequestMethodNotSupportedException.class })
    @ResponseBody
    public Map<String, Object> handleError() {
        Map<String, Object> errorMap = new HashMap<String, Object>();
        errorMap.put("message", "Error");
        errorMap.put("status", HttpStatus.METHOD_NOT_ALLOWED);
        return errorMap;
    }

    @ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)
    public String handlerException() {

         ....... 

        return “error/systemError”;
    }

}

ywlcn commented 5 years ago

REST API 数据类型转换

默认可以可使用的Converter(不需要其他Library)

項番	类名	变换	支持的MediaType	支持的JavaType
(1)	org.springframework.http.converter. ByteArrayHttpMessageConverter	HTTPBody(Text文本 or 2进制数据)⇔Byte数组	/	byte[]
(2)	org.springframework.http.converter. StringHttpMessageConverter	HTTPBody(Text文本)⇔文字列	text / *	String
(3)	org.springframework.http.converter. ResourceHttpMessageConverter	HTTPBody(2进制数据)⇔Spring的ResourceObject	/	Resource
(4)	org.springframework.http.converter.xml. SourceHttpMessageConverter	HTTPBody(XML)⇔XMLObject	・text/xml ・application/xml ・application/*-xml	Source
(5)	org.springframework.http.converter.support. AllEncompassingFormHttpMessageConverter	HTTPBody⇔MultiValueMap	・application/multipart/form-data　：MultiValueMap<String, Object> ・application/x-www-form-urlencoded　：MultiValueMap<String, String>	Map<K, List<?>>

其他可以可使用的Converter(需要其他Library)

項番	クラス名	变换	MediType	需要的库（存在于ClassPath）	サポート型
(6)	org.springframework.http.converter.feed. AtomFeedHttpMessageConverter	HTTPBody(Atom)⇔AtomObject	application/atom+xml	ROME	Feed
(7)	org.springframework.http.converter.feed. RssChannelHttpMessageConverter	HTTPBody(RSS)⇔RssObject	application/rss+xml	ROME	Channel
(8)	org.springframework.http.converter.json. MappingJackson2HttpMessageConverter	HTTPBody(JSON)⇔JavaBean	application/json,application/*+json	Jackson2	Object (JavaBean) Map
(9)	org.springframework.http.converter.xml. MappingJackson2XmlHttpMessageConverter	HTTPBody(XML)⇔JavaBean	text/xml,application/xml,application/*-xml	Jackson-dataformat-xml	Object (JavaBean) Map
(10)	org.springframework.http.converter.xml. Jaxb2RootElementHttpMessageConverter	HTTPBody(XML)⇔JavaBean	text/xml,application/xml,application/*-xml	JAXB	Object (JavaBean)
(11)	org.springframework.http.converter.json. GsonHttpMessageConverter	HTTPBody(JSON)⇔JavaBean	application/json,application/*+json	Gson	Object (JavaBean) Map


protected final void addDefaultHttpMessageConverters(List<HttpMessageConverter<?>> messageConverters) {
        StringHttpMessageConverter stringConverter = new StringHttpMessageConverter();
        stringConverter.setWriteAcceptCharset(false);

        messageConverters.add(new ByteArrayHttpMessageConverter());
        messageConverters.add(stringConverter);
        messageConverters.add(new ResourceHttpMessageConverter());
        messageConverters.add(new SourceHttpMessageConverter<Source>());
        messageConverters.add(new AllEncompassingFormHttpMessageConverter());

        if (romePresent) {
            messageConverters.add(new AtomFeedHttpMessageConverter());
            messageConverters.add(new RssChannelHttpMessageConverter());
        }

        if (jackson2XmlPresent) {
            ObjectMapper objectMapper = Jackson2ObjectMapperBuilder.xml().applicationContext(this.applicationContext).build();
            messageConverters.add(new MappingJackson2XmlHttpMessageConverter(objectMapper));
        }
        else if (jaxb2Present) {
            messageConverters.add(new Jaxb2RootElementHttpMessageConverter());
        }

        if (jackson2Present) {
            ObjectMapper objectMapper = Jackson2ObjectMapperBuilder.json().applicationContext(this.applicationContext).build();
            messageConverters.add(new MappingJackson2HttpMessageConverter(objectMapper));
        }
        else if (gsonPresent) {
            messageConverters.add(new GsonHttpMessageConverter());
        }
    }

ywlcn commented 5 years ago

HttpSession情报利用

1. @SessionAttributes (类注释类型指定或者属性名称指定)

2. 定义SessionScope的Bean

3.直接调用HttpSessionAPI

ywlcn commented 5 years ago

ResourceResolver 下面的类实现了ResourceResolver

VersionResourceResolver
GzipResourceResolver
WebJarsResourceResolver

ResourceTransformer 下面的类实现了ResourceTransformer

CssLinkResourceTransformer
AppCacheManifestTransformer

LocaleResoler 下面的类实现了LocaleResolver

AcceptHeaderLocaleResolver 使用HttpHeader的 Accent-Language
SessionLocaleResolver 使用HttpSession的Locale 通过LocaleChangeInterceptor实现
CookieLocaleResolver 使用Cookie的Locale 通过LocaleChangeInterceptor实现
FixedLocaleResolver JVM OS APP里面指定的Locale

ywlcn / SpringStudy

SpringMVC #10

Web.xml

DispatcherServlet

HandlerExceptionResolver

LocaleResolver

LocaleContextResolver

ThemeResolver

FlashMapManager

RequestToViewNameTranslator

HandlerInterceptor

MultipartResolver

HandlerMapping

HandlerAdapter

ViewResolver

View

Controller 可以使用的注释参数

SpringMVC Exception Handler

ExceptionHandlerExceptionResolver

ResponseStatusExceptionResolver

DefaultHanlderExceptionHandler

REST API 数据类型转换

默认可以可使用的Converter(不需要其他Library)

其他可以可使用的Converter(需要其他Library)

HttpSession情报利用

1. @SessionAttributes (类注释类型指定或者属性名称指定)

2. 定义SessionScope的Bean

3.直接调用HttpSessionAPI

ResourceResolver 下面的类实现了ResourceResolver

ResourceTransformer 下面的类实现了ResourceTransformer

LocaleResoler 下面的类实现了LocaleResolver

ywlcn / SpringStudy

SpringMVC #10

Web.xml

DispatcherServlet

HandlerExceptionResolver

LocaleResolver

LocaleContextResolver

ThemeResolver

FlashMapManager

RequestToViewNameTranslator

HandlerInterceptor

MultipartResolver

HandlerMapping

HandlerAdapter

ViewResolver

View

Controller 可以使用的注释参数

SpringMVC Exception Handler

ExceptionHandlerExceptionResolver

ResponseStatusExceptionResolver

DefaultHanlderExceptionHandler

REST API 数据类型转换

默认可以可使用的Converter(不需要其他Library)

其他可以可使用的Converter(需要其他Library)

HttpSession情报利用

1. @SessionAttributes (类注释 类型指定或者属性名称指定)

2. 定义SessionScope的Bean

3.直接调用HttpSessionAPI

ResourceResolver 下面的类实现了ResourceResolver

ResourceTransformer 下面的类实现了ResourceTransformer

LocaleResoler 下面的类实现了LocaleResolver

1. @SessionAttributes (类注释类型指定或者属性名称指定)