site.dungang.allowedparams.annotation

类 AllowedParamsModelAttributeMethodProcessor

java.lang.Object

site.dungang.allowedparams.annotation.AllowedParamsModelAttributeMethodProcessor

所有已实现的接口:

org.springframework.web.method.support.HandlerMethodArgumentResolver, org.springframework.web.method.support.HandlerMethodReturnValueHandler

public class AllowedParamsModelAttributeMethodProcessor
extends Object
implements org.springframework.web.method.support.HandlerMethodArgumentResolver, org.springframework.web.method.support.HandlerMethodReturnValueHandler

字段概要

字段

限定符和类型	字段和说明
protected org.slf4j.Logger	logger

构造器概要

构造器

构造器和说明
AllowedParamsModelAttributeMethodProcessor()

方法概要

限定符和类型	方法和说明
protected void	bindRequestParameters(org.springframework.web.bind.WebDataBinder binder, org.springframework.web.context.request.NativeWebRequest request, String[] allowedParams) Extension point to bind the request to the target object.
protected Object	createAttribute(String attributeName, org.springframework.core.MethodParameter methodParam, org.springframework.web.bind.support.WebDataBinderFactory binderFactory, org.springframework.web.context.request.NativeWebRequest request) Extension point to create the model attribute if not found in the model.
protected Object	createAttributeFromRequestValue(String sourceValue, String attributeName, org.springframework.core.MethodParameter methodParam, org.springframework.web.bind.support.WebDataBinderFactory binderFactory, org.springframework.web.context.request.NativeWebRequest request) Create a model attribute from a String request value (e.g.
protected String	getRequestValueForAttribute(String attributeName, org.springframework.web.context.request.NativeWebRequest request) Obtain a value from the request that may be used to instantiate the model attribute through type conversion from String to the target type.
protected Map<String,String>	getUriTemplateVariables(org.springframework.web.context.request.NativeWebRequest request)
void	handleReturnValue(Object returnValue, org.springframework.core.MethodParameter returnType, org.springframework.web.method.support.ModelAndViewContainer mavContainer, org.springframework.web.context.request.NativeWebRequest webRequest)
protected boolean	isBindExceptionRequired(org.springframework.web.bind.WebDataBinder binder, org.springframework.core.MethodParameter methodParam) Whether to raise a fatal bind exception on validation errors.
Object	resolveArgument(org.springframework.core.MethodParameter parameter, org.springframework.web.method.support.ModelAndViewContainer mavContainer, org.springframework.web.context.request.NativeWebRequest webRequest, org.springframework.web.bind.support.WebDataBinderFactory binderFactory) Resolve the argument from the model or if not found instantiate it with its default if it is available.
boolean	supportsParameter(org.springframework.core.MethodParameter parameter)
boolean	supportsReturnType(org.springframework.core.MethodParameter parameter)
protected void	validateIfApplicable(org.springframework.web.bind.WebDataBinder binder, org.springframework.core.MethodParameter methodParam) Validate the model attribute if applicable.

从类继承的方法 java.lang.Object

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

字段详细资料

logger

protected final org.slf4j.Logger logger

构造器详细资料

AllowedParamsModelAttributeMethodProcessor

public AllowedParamsModelAttributeMethodProcessor()

方法详细资料

supportsReturnType

public boolean supportsReturnType(org.springframework.core.MethodParameter parameter)

指定者:

supportsReturnType 在接口中 org.springframework.web.method.support.HandlerMethodReturnValueHandler

handleReturnValue

public void handleReturnValue(Object returnValue,
                              org.springframework.core.MethodParameter returnType,
                              org.springframework.web.method.support.ModelAndViewContainer mavContainer,
                              org.springframework.web.context.request.NativeWebRequest webRequest)
                       throws Exception

指定者:

handleReturnValue 在接口中 org.springframework.web.method.support.HandlerMethodReturnValueHandler

抛出:

Exception

supportsParameter

public boolean supportsParameter(org.springframework.core.MethodParameter parameter)

指定者:

supportsParameter 在接口中 org.springframework.web.method.support.HandlerMethodArgumentResolver

resolveArgument

public final Object resolveArgument(org.springframework.core.MethodParameter parameter,
                                    org.springframework.web.method.support.ModelAndViewContainer mavContainer,
                                    org.springframework.web.context.request.NativeWebRequest webRequest,
                                    org.springframework.web.bind.support.WebDataBinderFactory binderFactory)
                             throws Exception

Resolve the argument from the model or if not found instantiate it with its default if it is available. The model attribute is then populated with request values via data binding and optionally validated if @java.validation.Valid is present on the argument.

指定者:

resolveArgument 在接口中 org.springframework.web.method.support.HandlerMethodArgumentResolver

抛出:

org.springframework.validation.BindException - if data binding and validation result in an error and the next method parameter is not of type Errors.

Exception - if WebDataBinder initialization fails.

createAttribute

protected Object createAttribute(String attributeName,
                                 org.springframework.core.MethodParameter methodParam,
                                 org.springframework.web.bind.support.WebDataBinderFactory binderFactory,
                                 org.springframework.web.context.request.NativeWebRequest request)
                          throws Exception

Extension point to create the model attribute if not found in the model. The default implementation uses the default constructor.

参数:

attributeName - the name of the attribute (never null)

methodParam - the method parameter

binderFactory - for creating WebDataBinder instance

request - the current request

返回:

the created model attribute (never null)

抛出:

Exception - thrown on a type mismatch when trying to set a bean property.

bindRequestParameters

protected void bindRequestParameters(org.springframework.web.bind.WebDataBinder binder,
                                     org.springframework.web.context.request.NativeWebRequest request,
                                     String[] allowedParams)

Extension point to bind the request to the target object.

参数:

binder - the data binder instance to use for the binding

request - the current request

allowedParams - 允许接受的参数数组

validateIfApplicable

protected void validateIfApplicable(org.springframework.web.bind.WebDataBinder binder,
                                    org.springframework.core.MethodParameter methodParam)

Validate the model attribute if applicable.

The default implementation checks for @javax.validation.Valid, Spring's Validated, and custom annotations whose name starts with "Valid".

参数:

binder - the DataBinder to be used

methodParam - the method parameter

isBindExceptionRequired

protected boolean isBindExceptionRequired(org.springframework.web.bind.WebDataBinder binder,
                                          org.springframework.core.MethodParameter methodParam)

Whether to raise a fatal bind exception on validation errors.

参数:

binder - the data binder used to perform data binding

methodParam - the method argument

返回:

true if the next method argument is not of type Errors

getRequestValueForAttribute

protected String getRequestValueForAttribute(String attributeName,
                                             org.springframework.web.context.request.NativeWebRequest request)

Obtain a value from the request that may be used to instantiate the model attribute through type conversion from String to the target type.

The default implementation looks for the attribute name to match a URI variable first and then a request parameter.

参数:

attributeName - the model attribute name

request - the current request

返回:

the request value to try to convert, or null if none

getUriTemplateVariables

protected final Map<String,String> getUriTemplateVariables(org.springframework.web.context.request.NativeWebRequest request)

createAttributeFromRequestValue

protected Object createAttributeFromRequestValue(String sourceValue,
                                                 String attributeName,
                                                 org.springframework.core.MethodParameter methodParam,
                                                 org.springframework.web.bind.support.WebDataBinderFactory binderFactory,
                                                 org.springframework.web.context.request.NativeWebRequest request)
                                          throws Exception

Create a model attribute from a String request value (e.g. URI template variable, request parameter) using type conversion.

The default implementation converts only if there a registered Converter that can perform the conversion.

参数:

sourceValue - the source value to create the model attribute from

attributeName - the name of the attribute (never null)

methodParam - the method parameter

binderFactory - for creating WebDataBinder instance

request - the current request

返回:

the created model attribute, or null if no suitable conversion found

抛出:

Exception - thrown on a type mismatch when trying to set a bean property.