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This commit is contained in:
Juergen Hoeller
2018-10-24 22:10:05 +02:00
parent 448182fa5c
commit 47ca7b39a2
12 changed files with 72 additions and 77 deletions
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35
spring-web/src/main/java/org/springframework/web/bind/annotation/RequestPart.java
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@@ -1,5 +1,5 @@
/*
* Copyright 2002-2016 the original author or authors.
* Copyright 2002-2018 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -33,23 +33,24 @@ import org.springframework.web.multipart.MultipartResolver;
* Annotation that can be used to associate the part of a "multipart/form-data" request
* with a method argument.
*
* <p>Supported method argument types include {@link MultipartFile}
* in conjunction with Spring's {@link MultipartResolver} abstraction,
* {@code javax.servlet.http.Part} in conjunction with Servlet 3.0 multipart requests,
* or otherwise for any other method argument, the content of the part is passed through an
* {@link HttpMessageConverter} taking into consideration the 'Content-Type' header
* of the request part. This is analogous to what @{@link RequestBody} does to resolve
* an argument based on the content of a non-multipart regular request.
* <p>Supported method argument types include {@link MultipartFile} in conjunction with
* Spring's {@link MultipartResolver} abstraction, {@code javax.servlet.http.Part} in
* conjunction with Servlet 3.0 multipart requests, or otherwise for any other method
* argument, the content of the part is passed through an {@link HttpMessageConverter}
* taking into consideration the 'Content-Type' header of the request part. This is
* analogous to what @{@link RequestBody} does to resolve an argument based on the
* content of a non-multipart regular request.
*
* <p>Note that @{@link RequestParam} annotation can also be used to associate the
* part of a "multipart/form-data" request with a method argument supporting the same
* method argument types. The main difference is that when the method argument is not a
* String, @{@link RequestParam} relies on type conversion via a registered
* {@link Converter} or {@link PropertyEditor} while @{@link RequestPart} relies
* on {@link HttpMessageConverter}s taking into consideration the 'Content-Type' header
* of the request part. @{@link RequestParam} is likely to be used with name-value form
* fields while @{@link RequestPart} is likely to be used with parts containing more
* complex content (e.g. JSON, XML).
* <p>Note that @{@link RequestParam} annotation can also be used to associate the part
* of a "multipart/form-data" request with a method argument supporting the same method
* argument types. The main difference is that when the method argument is not a String
* or raw {@code MultipartFile} / {@code Part}, {@code @RequestParam} relies on type
* conversion via a registered {@link Converter} or {@link PropertyEditor} while
* {@link RequestPart} relies on {@link HttpMessageConverter HttpMessageConverters}
* taking into consideration the 'Content-Type' header of the request part.
* {@link RequestParam} is likely to be used with name-value form fields while
* {@link RequestPart} is likely to be used with parts containing more complex content
* e.g. JSON, XML).
*
* @author Rossen Stoyanchev
* @author Arjen Poutsma

4
spring-web/src/main/java/org/springframework/web/method/annotation/MapMethodProcessor.java
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@@ -1,5 +1,5 @@
/*
* Copyright 2002-2014 the original author or authors.
* Copyright 2002-2018 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -56,7 +56,7 @@ public class MapMethodProcessor implements HandlerMethodArgumentResolver, Handle
}
@Override
@SuppressWarnings({ "unchecked", "rawtypes" })
@SuppressWarnings({"unchecked", "rawtypes"})
public void handleReturnValue(Object returnValue, MethodParameter returnType,
ModelAndViewContainer mavContainer, NativeWebRequest webRequest) throws Exception {

17
spring-web/src/main/java/org/springframework/web/method/annotation/RequestParamMapMethodArgumentResolver.java
View File

@@ -1,5 +1,5 @@
/*
* Copyright 2002-2015 the original author or authors.
* Copyright 2002-2018 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -37,7 +37,7 @@ import org.springframework.web.method.support.ModelAndViewContainer;
*
* <p>The created {@link Map} contains all request parameter name/value pairs.
* If the method parameter type is {@link MultiValueMap} instead, the created
* map contains all request parameters and all there values for cases where
* map contains all request parameters and all their values for cases where
* request parameters have multiple values.
*
* @author Arjen Poutsma
@@ -50,22 +50,16 @@ public class RequestParamMapMethodArgumentResolver implements HandlerMethodArgum
@Override
public boolean supportsParameter(MethodParameter parameter) {
RequestParam requestParam = parameter.getParameterAnnotation(RequestParam.class);
if (requestParam != null) {
if (Map.class.isAssignableFrom(parameter.getParameterType())) {
return !StringUtils.hasText(requestParam.name());
}
}
return false;
return (requestParam != null && Map.class.isAssignableFrom(parameter.getParameterType()) &&
!StringUtils.hasText(requestParam.name()));
}
@Override
public Object resolveArgument(MethodParameter parameter, ModelAndViewContainer mavContainer,
NativeWebRequest webRequest, WebDataBinderFactory binderFactory) throws Exception {
Class<?> paramType = parameter.getParameterType();
Map<String, String[]> parameterMap = webRequest.getParameterMap();
if (MultiValueMap.class.isAssignableFrom(paramType)) {
if (MultiValueMap.class.isAssignableFrom(parameter.getParameterType())) {
MultiValueMap<String, String> result = new LinkedMultiValueMap<String, String>(parameterMap.size());
for (Map.Entry<String, String[]> entry : parameterMap.entrySet()) {
for (String value : entry.getValue()) {
@@ -84,4 +78,5 @@ public class RequestParamMapMethodArgumentResolver implements HandlerMethodArgum
return result;
}
}
}

18
spring-web/src/main/java/org/springframework/web/method/annotation/RequestParamMethodArgumentResolver.java
View File

@@ -1,5 +1,5 @@
/*
* Copyright 2002-2016 the original author or authors.
* Copyright 2002-2018 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -80,6 +80,7 @@ public class RequestParamMethodArgumentResolver extends AbstractNamedValueMethod
/**
* Create a new {@link RequestParamMethodArgumentResolver} instance.
* @param useDefaultResolution in default resolution mode a method argument
* that is a simple type, as defined in {@link BeanUtils#isSimpleProperty},
* is treated as a request parameter even if it isn't annotated, the
@@ -90,6 +91,7 @@ public class RequestParamMethodArgumentResolver extends AbstractNamedValueMethod
}
/**
* Create a new {@link RequestParamMethodArgumentResolver} instance.
* @param beanFactory a bean factory used for resolving ${...} placeholder
* and #{...} SpEL expressions in default values, or {@code null} if default
* values are not expected to contain expressions
@@ -108,15 +110,11 @@ public class RequestParamMethodArgumentResolver extends AbstractNamedValueMethod
* Supports the following:
* <ul>
* <li>@RequestParam-annotated method arguments.
* This excludes {@link Map} params where the annotation doesn't
* specify a name. See {@link RequestParamMapMethodArgumentResolver}
* instead for such params.
* <li>Arguments of type {@link MultipartFile}
* unless annotated with @{@link RequestPart}.
* <li>Arguments of type {@code javax.servlet.http.Part}
* unless annotated with @{@link RequestPart}.
* <li>In default resolution mode, simple type arguments
* even if not with @{@link RequestParam}.
* This excludes {@link Map} params where the annotation does not specify a name.
* See {@link RequestParamMapMethodArgumentResolver} instead for such params.
* <li>Arguments of type {@link MultipartFile} unless annotated with @{@link RequestPart}.
* <li>Arguments of type {@code Part} unless annotated with @{@link RequestPart}.
* <li>In default resolution mode, simple type arguments even if not with @{@link RequestParam}.
* </ul>
*/
@Override