java.lang.Object
- org.springframework.http.codec.LoggingCodecSupport
- - org.springframework.http.codec.FormHttpMessageReader

All Implemented Interfaces:
HttpMessageReader<MultiValueMap<String,String>>
```
public class FormHttpMessageReader
extends LoggingCodecSupport
implements HttpMessageReader<MultiValueMap<String,String>>
```
Implementation of an HttpMessageReader to read HTML form data, i.e. request body with media type "application/x-www-form-urlencoded".
Since:
5.0
Author:
Sebastien Deleuze, Rossen Stoyanchev

Field Summary
Fields
Modifier and Type Field Description
static Charset DEFAULT_CHARSET
The default charset used by the reader.
- Fields inherited from class org.springframework.http.codec.LoggingCodecSupport
  logger

Constructor Summary
Constructors
Constructor Description
FormHttpMessageReader()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`canRead(ResolvableType elementType, MediaType mediaType)`	Whether the given object type is supported by this reader.
`Charset`	`getDefaultCharset()`	Return the configured default charset.
`int`	`getMaxInMemorySize()`	Return the `configured` byte count limit.
`List<MediaType>`	`getReadableMediaTypes()`	Return the `MediaType`'s that this reader supports.
`reactor.core.publisher.Flux<MultiValueMap<String,String>>`	`read(ResolvableType elementType, ReactiveHttpInputMessage message, Map<String,Object> hints)`	Read from the input message and encode to a stream of objects.
`reactor.core.publisher.Mono<MultiValueMap<String,String>>`	`readMono(ResolvableType elementType, ReactiveHttpInputMessage message, Map<String,Object> hints)`	Read from the input message and encode to a single object.
`void`	`setDefaultCharset(Charset charset)`	Set the default character set to use for reading form data when the request Content-Type header does not explicitly specify it.
`void`	`setMaxInMemorySize(int byteCount)`	Set the max number of bytes for input form data.

Methods inherited from class org.springframework.http.codec.LoggingCodecSupport
isEnableLoggingRequestDetails, setEnableLoggingRequestDetails

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.springframework.http.codec.HttpMessageReader
read, readMono

- Field Detail
  - DEFAULT_CHARSET
```
public static final Charset DEFAULT_CHARSET
```
    The default charset used by the reader.
- Constructor Detail
  - FormHttpMessageReader
```
public FormHttpMessageReader()
```
- Method Detail
  - setDefaultCharset
```
public void setDefaultCharset(Charset charset)
```
    Set the default character set to use for reading form data when the request Content-Type header does not explicitly specify it.
    By default this is set to "UTF-8".
  - getDefaultCharset
```
public Charset getDefaultCharset()
```
    Return the configured default charset.
  - setMaxInMemorySize
```
public void setMaxInMemorySize(int byteCount)
```
    Set the max number of bytes for input form data. As form data is buffered before it is parsed, this helps to limit the amount of buffering. Once the limit is exceeded, DataBufferLimitException is raised.
    By default this is set to 256K.
    Parameters:
    byteCount - the max number of bytes to buffer, or -1 for unlimited
    Since:
    5.1.11
  - getMaxInMemorySize
```
public int getMaxInMemorySize()
```
    Return the configured byte count limit.
    Since:
    5.1.11
  - canRead
```
public boolean canRead(ResolvableType elementType,
                       @Nullable
                       MediaType mediaType)
```
    Description copied from interface: HttpMessageReader
    Whether the given object type is supported by this reader.
    Specified by:
    canRead in interface HttpMessageReader<MultiValueMap<String,String>>
    Parameters:
    elementType - the type of object to check
    mediaType - the media type for the read (possibly null)
    Returns:
    true if readable, false otherwise
  - read
```
public reactor.core.publisher.Flux<MultiValueMap<String,String>> read(ResolvableType elementType,
                                                                            ReactiveHttpInputMessage message,
                                                                            Map<String,Object> hints)
```
    Description copied from interface: HttpMessageReader
    Read from the input message and encode to a stream of objects.
    Specified by:
    read in interface HttpMessageReader<MultiValueMap<String,String>>
    Parameters:
    elementType - the type of objects in the stream which must have been previously checked via HttpMessageReader.canRead(ResolvableType, MediaType)
    message - the message to read from
    hints - additional information about how to read and decode the input
    Returns:
    the decoded stream of elements
  - readMono
```
public reactor.core.publisher.Mono<MultiValueMap<String,String>> readMono(ResolvableType elementType,
                                                                                ReactiveHttpInputMessage message,
                                                                                Map<String,Object> hints)
```
    Description copied from interface: HttpMessageReader
    Read from the input message and encode to a single object.
    Specified by:
    readMono in interface HttpMessageReader<MultiValueMap<String,String>>
    Parameters:
    elementType - the type of objects in the stream which must have been previously checked via HttpMessageReader.canRead(ResolvableType, MediaType)
    message - the message to read from
    hints - additional information about how to read and decode the input
    Returns:
    the decoded object
  - getReadableMediaTypes
```
public List<MediaType> getReadableMediaTypes()
```
    Description copied from interface: HttpMessageReader
    Return the MediaType's that this reader supports.
    Specified by:
    getReadableMediaTypes in interface HttpMessageReader<MultiValueMap<String,String>>

Class FormHttpMessageReader

Field Summary

Fields inherited from class org.springframework.http.codec.LoggingCodecSupport

Constructor Summary

Method Summary

Methods inherited from class org.springframework.http.codec.LoggingCodecSupport

Methods inherited from class java.lang.Object

Methods inherited from interface org.springframework.http.codec.HttpMessageReader

Field Detail

DEFAULT_CHARSET

Constructor Detail

FormHttpMessageReader

Method Detail

setDefaultCharset

getDefaultCharset

setMaxInMemorySize

getMaxInMemorySize

canRead

read

readMono

getReadableMediaTypes