org.springframework.http.MediaType#APPLICATION_JSON_UTF8 ( )源码实例Demo

@Test
public void writeJsonWithJavaFormat() throws IOException {
	this.converter = new ProtobufHttpMessageConverter(
			new ProtobufHttpMessageConverter.ProtobufJavaFormatSupport(),
			this.extensionRegistry);
	MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
	MediaType contentType = MediaType.APPLICATION_JSON_UTF8;
	this.converter.write(this.testMsg, contentType, outputMessage);

	assertEquals(contentType, outputMessage.getHeaders().getContentType());

	final String body = outputMessage.getBodyAsString(Charset.forName("UTF-8"));
	assertFalse("body is empty", body.isEmpty());

	Msg.Builder builder = Msg.newBuilder();
	JsonFormat.parser().merge(body, builder);
	assertEquals(this.testMsg, builder.build());

	assertNull(outputMessage.getHeaders().getFirst(
			ProtobufHttpMessageConverter.X_PROTOBUF_MESSAGE_HEADER));
	assertNull(outputMessage.getHeaders().getFirst(
			ProtobufHttpMessageConverter.X_PROTOBUF_SCHEMA_HEADER));
}
 

@Test
public void writeJsonWithGoogleProtobuf() throws IOException {
	this.converter = new ProtobufHttpMessageConverter(
			new ProtobufHttpMessageConverter.ProtobufJavaUtilSupport(null, null),
			this.extensionRegistry);
	MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
	MediaType contentType = MediaType.APPLICATION_JSON_UTF8;
	this.converter.write(this.testMsg, contentType, outputMessage);

	assertEquals(contentType, outputMessage.getHeaders().getContentType());

	final String body = outputMessage.getBodyAsString(Charset.forName("UTF-8"));
	assertFalse("body is empty", body.isEmpty());

	Msg.Builder builder = Msg.newBuilder();
	JsonFormat.parser().merge(body, builder);
	assertEquals(this.testMsg, builder.build());

	assertNull(outputMessage.getHeaders().getFirst(
			ProtobufHttpMessageConverter.X_PROTOBUF_MESSAGE_HEADER));
	assertNull(outputMessage.getHeaders().getFirst(
			ProtobufHttpMessageConverter.X_PROTOBUF_SCHEMA_HEADER));
}
 

@Test
public void writeJsonWithJavaFormat() throws IOException {
	this.converter = new ProtobufHttpMessageConverter(
			new ProtobufHttpMessageConverter.ProtobufJavaFormatSupport(),
			this.extensionRegistry);
	MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
	MediaType contentType = MediaType.APPLICATION_JSON_UTF8;
	this.converter.write(this.testMsg, contentType, outputMessage);

	assertEquals(contentType, outputMessage.getHeaders().getContentType());

	final String body = outputMessage.getBodyAsString(Charset.forName("UTF-8"));
	assertFalse("body is empty", body.isEmpty());

	Msg.Builder builder = Msg.newBuilder();
	JsonFormat.parser().merge(body, builder);
	assertEquals(this.testMsg, builder.build());

	assertNull(outputMessage.getHeaders().getFirst(
			ProtobufHttpMessageConverter.X_PROTOBUF_MESSAGE_HEADER));
	assertNull(outputMessage.getHeaders().getFirst(
			ProtobufHttpMessageConverter.X_PROTOBUF_SCHEMA_HEADER));
}
 

@SuppressWarnings("unused")
protected MediaType getErrorResponseContentType(
    DefaultErrorContractDTO errorContractDTO,
    int httpStatusCode,
    Collection<ApiError> rawFilteredApiErrors,
    Throwable originalException,
    RequestInfoForLogging request
) {
    // Default to simply application/json in UTF8.
    return MediaType.APPLICATION_JSON_UTF8;
}
 

public QuoteOnDesignMessageConverter() {
    super(Jackson2ObjectMapperBuilder.json().build(),
            MediaType.APPLICATION_JSON_UTF8,
            new MediaType("text", "x-json", DEFAULT_CHARSET));
}
 

/**
 * Construct a new {@code GsonHttpMessageConverter}.
 */
public GsonHttpMessageConverter() {
	super(MediaType.APPLICATION_JSON_UTF8, new MediaType("application", "*+json", DEFAULT_CHARSET));
}
 

public FastjsonHttpMessageConverter(SerializeConfig serializeConfig, ParserConfig parserConfig) {
	super(MediaType.APPLICATION_JSON_UTF8, new MediaType("application", "*+json", DEFAULT_CHARSET));
	this.serializeConfig = serializeConfig;
	this.parserConfig = parserConfig;
}
 

/**
 * Construct a new {@link MappingJackson2HttpMessageConverter} with a custom {@link ObjectMapper}.
 * You can use {@link Jackson2ObjectMapperBuilder} to build it easily.
 * @see Jackson2ObjectMapperBuilder#json()
 */
public MappingJackson2HttpMessageConverter(ObjectMapper objectMapper) {
	super(objectMapper, MediaType.APPLICATION_JSON_UTF8,
			new MediaType("application", "*+json", DEFAULT_CHARSET));
}