Shulou(Shulou.com)06/02 Report--

This article introduces the relevant knowledge of "how to change the coding format of RestTemplate to UTF-8". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

The RestTemplate coding format is changed to UTF-8 to prevent garbled code.

When I called the API of Wechat, I found that the user data returned by Wechat did not display nicknames properly, and the nicknames were garbled.

/ / modify the encoding format of RestTemplate to UTF-8 RestTemplate restTemplate = new RestTemplate (); List text/plain Charset=UTF-8

And then automatically inject it where it is used.

Let's see why public RestTemplate () {this.messageConverters.add (new ByteArrayHttpMessageConverter ()); this.messageConverters.add (new StringHttpMessageConverter ()); this.messageConverters.add (new ResourceHttpMessageConverter ()); this.messageConverters.add (new SourceHttpMessageConverter ()); this.messageConverters.add (new AllEncompassingFormHttpMessageConverter ()); if (romePresent) {this.messageConverters.add (new AtomFeedHttpMessageConverter ()) This.messageConverters.add (new RssChannelHttpMessageConverter ());} if (jaxb2Present) {this.messageConverters.add (new Jaxb2RootElementHttpMessageConverter ());} if (jackson2Present) {this.messageConverters.add (new MappingJackson2HttpMessageConverter ());} else if (jacksonPresent) {this.messageConverters.add (new MappingJacksonHttpMessageConverter ());}}

From the RestTemplate construction method, we can see that there are several default messageConverters for restTemplate, and this time the protagonist is StringHttpMessageConverter:

Public class StringHttpMessageConverter extends AbstractHttpMessageConverter {public static final Charset DEFAULT_CHARSET = Charset.forName ("ISO-8859-1"); private final Charset defaultCharset; private final List availableCharsets; private boolean writeAcceptCharset = true; / * * A default constructor that uses {@ code "ISO-8859-1"} as the default charset. * @ see # StringHttpMessageConverter (Charset) * / public StringHttpMessageConverter () {this (DEFAULT_CHARSET);} / * * A constructor accepting a default charset to use if the requested content * type does not specify one. * / public StringHttpMessageConverter (Charset defaultCharset) {super (new MediaType ("text", "plain", defaultCharset), MediaType.ALL); this.defaultCharset = defaultCharset; this.availableCharsets = new ArrayList (Charset.availableCharsets (). Values ());} / * * Indicates whether the {@ code Accept-Charset} should be written to any outgoing request. *

Default is {@ code true}. * / public void setWriteAcceptCharset (boolean writeAcceptCharset) {this.writeAcceptCharset = writeAcceptCharset;} @ Override public boolean supports (Class clazz) {return String.class.equals (clazz);} @ Override protected String readInternal (Class)

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.