我想创建一个REST Server，它接受XML请求和纯文本到不同的控制器中。我试图实现这一点：
@SpringBootApplication
public class Application extends SpringBootServletInitializer implements WebMvcConfigurer {
@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
return application.sources(Application.class);
}
..............
private BasicAuthenticationInterceptor basicAuthenticationInterceptor;
@Override
public void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
converters.removeIf(converter -> converter instanceof MappingJackson2XmlHttpMessageConverter);
converters.removeIf(converter -> converter instanceof MappingJackson2HttpMessageConverter);
converters.add(new MappingJackson2XmlHttpMessageConverter(
((XmlMapper) createObjectMapper(Jackson2ObjectMapperBuilder.xml()))
.enable(ToXmlGenerator.Feature.WRITE_XML_DECLARATION)));
converters.add(new MappingJackson2HttpMessageConverter(createObjectMapper(Jackson2ObjectMapperBuilder.json())));
}
private ObjectMapper createObjectMapper(Jackson2ObjectMapperBuilder builder) {
builder.indentOutput(true);
builder.modules(new JaxbAnnotationModule());
builder.serializationInclusion(JsonInclude.Include.NON_NULL);
builder.defaultUseWrapper(false);
return builder.build();
}
@Autowired
public void setBasicAuthenticationInterceptor(BasicAuthenticationInterceptor basicAuthenticationInterceptor) {
this.basicAuthenticationInterceptor = basicAuthenticationInterceptor;
}
@Override
public void addInterceptors(InterceptorRegistry registry) {
registry.addInterceptor(basicAuthenticationInterceptor);
}
}
检查XML的正确格式：
@ControllerAdvice
public class RestExceptionHandler extends ResponseEntityExceptionHandler {
@Override
protected ResponseEntity<Object> handleHttpMessageNotReadable(HttpMessageNotReadableException ex,
HttpHeaders headers, HttpStatus status, WebRequest request) {
PaymentTransaction response;
if (ex.getMessage().contains("Required request body")) {
response = new PaymentTransaction(PaymentTransaction.Response.failed_response, 350,
"Invalid XML message: No XML data received", "XML request parsing failed!");
} else {
response = new PaymentTransaction(PaymentTransaction.Response.failed_response, 351,
"Invalid XML message format", null);
}
return ResponseEntity.badRequest().body(response);
}
}
控制器类：
@RestController()
public class HomeController {
@Autowired
public HomeController(Map<String, MessageProcessor> processors, Map<String, ReconcileProcessor> reconcileProcessors,
@Qualifier("defaultProcessor") MessageProcessor defaultProcessor,
AuthenticationService authenticationService, ClientRepository repository,
@Value("${request.limit}") int requestLimit) {
// Here I receive XML
}
@GetMapping(value = "/v1/*")
public String message() {
return "REST server";
}
@PostMapping(value = "/v1/{token}", consumes = { MediaType.APPLICATION_XML_VALUE,
MediaType.APPLICATION_JSON_VALUE }, produces = { MediaType.APPLICATION_XML_VALUE,
MediaType.APPLICATION_JSON_VALUE })
public PaymentResponse handleMessage(@PathVariable("token") String token,
@RequestBody PaymentTransaction transaction, HttpServletRequest request) throws Exception {
// Here I receive XML
}
@PostMapping(value = "/v1/notification")
public ResponseEntity<String> handleNotifications(@RequestBody Map<String, String> keyValuePairs) {
// Here I receive key and value in request body
}
@PostMapping(value = "/v1/summary/by_date/{token}", consumes = { MediaType.APPLICATION_XML_VALUE,
MediaType.APPLICATION_JSON_VALUE }, produces = { MediaType.APPLICATION_XML_VALUE,
MediaType.APPLICATION_JSON_VALUE })
public PaymentResponses handleReconcile(@PathVariable("token") String token, @RequestBody Reconcile reconcile,
HttpServletRequest request) throws Exception {
// Here I receive XML
}
@ResponseStatus(value = HttpStatus.UNAUTHORIZED)
public static class UnauthorizedException extends RuntimeException {
UnauthorizedException(String message) {
super(message);
}
}
}
如您所见，在某些方法中，我收到XML，而在其他方法中，我收到key=value&.....形式的String
我如何配置Spring接受两种类型？ 还应该将Rest控制器拆分为其他文件吗？
编辑：
示例XML请求：
<?xml version="1.0" encoding="UTF-8"?>
<payment_transaction>
<transaction_type>authorize</transaction_type>
<transaction_id>2aeke4geaclv7ml80</transaction_id>
<amount>1000</amount>
<currency>USD</currency>
<card_number>22</card_number>
<shipping_address>
<first_name>Name</first_name>
</shipping_address>
</payment_transaction>
示例XML响应：
<?xml version="1.0" encoding="UTF-8"?>
<payment_response>
<transaction_type>authorize</transaction_type>
<status>approved</status>
<unique_id>5f7edd36689f03324f3ef531beacfaae</unique_id>
<transaction_id>asdsdlddea4sdaasdsdsa4dadasda</transaction_id>
<code>500</code>
<amount>101</amount>
<currency>EUR</currency>
</payment_response>
样品通知请求：
uniqueid=23434&type=sale&status=33
样本通知响应：它应该仅返回HTTP状态OK。
我使用：
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.4.RELEASE</version>
<relativePath />
</parent>
Java版本：“ 10.0.2” 2018-07-17
关于我使用的XML生成：
@XmlRootElement(name = "payment_transaction")
public class PaymentTransaction {
public enum Response {
failed_response, successful_response
}
@XmlElement(name = "transaction_type")
public String transactionType;
@XmlElement(name = "transaction_id")
public String transactionId;
@XmlElement(name = "usage")
答案 0 :(得分：1)
更新，该解决方案适用于2.x之前的Spring-boot版本。 要考虑的另一件事是，在测试期间，我在DTO上使用了Jackson的XML注释（JacksonXmlRootElement，JacksonXmlProperty），也许FormHttpMessageConverter可以处理带有标准JAXB注释的DTO（请参见我对Spring 2.0.4-RELEASE的回答）-所以您可以如果可以的话（最好至少尝试一下，然后再应用草绘的解决方案）。
这是我的解决方案。我也放下了RequestIntereptor（因为它只是检查请求而不是修改请求）和RequestBodyAdvice（因为事实证明有更好的方法。）
如果您查看available MessageConverters，则可以看到唯一读取已发布表单数据的MessageConverter是FormHttpMessageConverter。 此类的问题是返回类型，即Multivaluemap
但是，使用此类作为基础，我创建了一个抽象类，该抽象类将表单数据读取到此Multivaluemap中，并且只有一个抽象功能需要在子类中实现：它将根据值创建一个对象存储在多值图中。
不幸的是，我不得不在要阅读的DTO上引入一个接口（因为我保留了编写部分的原始实现只是采用了它）。
总而言之，我的工作解决方案：
在 WebMvcConfigurerAdapter 类中，我具有以下配置：
@Override
public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
MyRequestBodyHttpMessageConverter converter = new MyRequestBodyHttpMessageConverter();
//FormHttpMessageConverter converter = new FormHttpMessageConverter();
MediaType utf8FormEncoded = new MediaType("application","x-www-form-urlencoded", Charset.forName("UTF-8"));
//MediaType mediaType = MediaType.APPLICATION_FORM_URLENCODED; maybe UTF-8 is not needed
//converter.setSupportedMediaTypes(Arrays.asList(MediaType.APPLICATION_FORM_URLENCODED));
converter.setSupportedMediaTypes(Arrays.asList(utf8FormEncoded));
converters.add(converter);
converters.add(new MappingJackson2HttpMessageConverter());
converters.add(new MappingJackson2XmlHttpMessageConverter());
super.configureMessageConverters(converters);
}
我对您的控制器功能做了一些修改：
@PostMapping(value = "/v1/{token}",
consumes = MediaType.APPLICATION_XML_VALUE,
produces = MediaType.APPLICATION_JSON_VALUE)
public @ResponseBody MyResponseBody handleMessage(@PathVariable("token") String token, @RequestBody MyRequestBody transaction, HttpServletRequest request) throws Exception {
MyResponseBody body = new MyResponseBody();
body.setId(transaction.getId());
body.setName("received " + transaction.getName());
return body;
}
// check @ModelAttribute workaround https://stackoverflow.com/questions/4339207/http-post-with-request-content-type-form-not-working-in-spring-mvc-3
@PostMapping(consumes = MediaType.APPLICATION_FORM_URLENCODED_VALUE, value = "/v1/notification")
public ResponseEntity<String> handleNotifications(@ModelAttribute MyRequestBody transaction) {
return new ResponseEntity<String>(HttpStatus.OK);
}
（在下一部分中，导入包很有意义，可以在其他位置找到一些邮件api类）
import java.io.IOException;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.net.URLEncoder;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import javax.mail.internet.MimeUtility;
import org.springframework.core.io.Resource;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpInputMessage;
import org.springframework.http.HttpOutputMessage;
import org.springframework.http.MediaType;
import org.springframework.http.StreamingHttpOutputMessage;
import org.springframework.http.converter.AbstractHttpMessageConverter;
import org.springframework.http.converter.ByteArrayHttpMessageConverter;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.HttpMessageNotReadableException;
import org.springframework.http.converter.HttpMessageNotWritableException;
import org.springframework.http.converter.ResourceHttpMessageConverter;
import org.springframework.http.converter.StringHttpMessageConverter;
import org.springframework.util.LinkedMultiValueMap;
import org.springframework.util.MimeTypeUtils;
import org.springframework.util.MultiValueMap;
import org.springframework.util.StreamUtils;
import org.springframework.util.StringUtils;
/**
* based on {@link org.springframework.http.converter.FormHttpMessageConverter
*
* it uses the readed MultiValueMap to build up the DTO we would like to get from the request body.
*/
public abstract class AbstractRequestBodyFormHttpMessageConverter<T extends RequestParamSupport> implements HttpMessageConverter<T> {
/**
* This is the only method you have to implement for your DTO class
* the class must implement RequestParamSupport
*/
protected abstract T buildObject(MultiValueMap<String, Object> valueMap);
public interface RequestParamSupport{
MultiValueMap<String, Object> getRequestParams();
}
public static final Charset DEFAULT_CHARSET = Charset.forName("UTF-8");
private List<MediaType> supportedMediaTypes = new ArrayList<MediaType>();
private List<HttpMessageConverter<?>> partConverters = new ArrayList<HttpMessageConverter<?>>();
private Charset charset = DEFAULT_CHARSET;
private Charset multipartCharset;
private Class<T> bodyClass;
public AbstractRequestBodyFormHttpMessageConverter(Class<T> bodyClass) {
this.bodyClass = bodyClass;
this.supportedMediaTypes.add(MediaType.APPLICATION_FORM_URLENCODED);
this.supportedMediaTypes.add(MediaType.MULTIPART_FORM_DATA);
StringHttpMessageConverter stringHttpMessageConverter = new StringHttpMessageConverter();
stringHttpMessageConverter.setWriteAcceptCharset(false); // see SPR-7316
this.partConverters.add(new ByteArrayHttpMessageConverter());
this.partConverters.add(stringHttpMessageConverter);
this.partConverters.add(new ResourceHttpMessageConverter());
applyDefaultCharset();
}
/**
* Set the character set to use when writing multipart data to encode file
* names. Encoding is based on the encoded-word syntax defined in RFC 2047
* and relies on {@code MimeUtility} from "javax.mail".
* <p>If not set file names will be encoded as US-ASCII.
* @since 4.1.1
* @see <a href="http://en.wikipedia.org/wiki/MIME#Encoded-Word">Encoded-Word</a>
*/
public void setMultipartCharset(Charset charset) {
this.multipartCharset = charset;
}
/**
* Apply the configured charset as a default to registered part converters.
*/
private void applyDefaultCharset() {
for (HttpMessageConverter<?> candidate : this.partConverters) {
if (candidate instanceof AbstractHttpMessageConverter) {
AbstractHttpMessageConverter<?> converter = (AbstractHttpMessageConverter<?>) candidate;
// Only override default charset if the converter operates with a charset to begin with...
if (converter.getDefaultCharset() != null) {
converter.setDefaultCharset(this.charset);
}
}
}
}
@Override
public boolean canRead(Class<?> clazz, MediaType mediaType) {
if (!bodyClass.isAssignableFrom(clazz)) {
return false;
}
if (mediaType == null) {
return true;
}
for (MediaType supportedMediaType : getSupportedMediaTypes()) {
// We can't read multipart....
if (!supportedMediaType.equals(MediaType.MULTIPART_FORM_DATA) && supportedMediaType.includes(mediaType)) {
return true;
}
}
return false;
}
@Override
public boolean canWrite(Class<?> clazz, MediaType mediaType) {
if (!bodyClass.isAssignableFrom(clazz)) {
return false;
}
if (mediaType == null || MediaType.ALL.equals(mediaType)) {
return true;
}
for (MediaType supportedMediaType : getSupportedMediaTypes()) {
if (supportedMediaType.isCompatibleWith(mediaType)) {
return true;
}
}
return false;
}
/**
* Set the list of {@link MediaType} objects supported by this converter.
*/
public void setSupportedMediaTypes(List<MediaType> supportedMediaTypes) {
this.supportedMediaTypes = supportedMediaTypes;
}
@Override
public List<MediaType> getSupportedMediaTypes() {
return Collections.unmodifiableList(this.supportedMediaTypes);
}
@Override
public T read(Class<? extends T> clazz, HttpInputMessage inputMessage)
throws IOException, HttpMessageNotReadableException {
MediaType contentType = inputMessage.getHeaders().getContentType();
Charset charset = (contentType.getCharset() != null ? contentType.getCharset() : this.charset);
String body = StreamUtils.copyToString(inputMessage.getBody(), charset);
String[] pairs = StringUtils.tokenizeToStringArray(body, "&");
MultiValueMap<String, Object> result = new LinkedMultiValueMap<String, Object>(pairs.length);
for (String pair : pairs) {
int idx = pair.indexOf('=');
if (idx == -1) {
result.add(URLDecoder.decode(pair, charset.name()), null);
}
else {
String name = URLDecoder.decode(pair.substring(0, idx), charset.name());
String value = URLDecoder.decode(pair.substring(idx + 1), charset.name());
result.add(name, value);
}
}
return buildObject(result);
}
@Override
public void write(T object, MediaType contentType,
HttpOutputMessage outputMessage) throws IOException,
HttpMessageNotWritableException {
if (!isMultipart(object, contentType)) {
writeForm(object.getRequestParams(), contentType, outputMessage);
}
else {
writeMultipart(object.getRequestParams(), outputMessage);
}
}
private boolean isMultipart(RequestParamSupport object, MediaType contentType) {
if (contentType != null) {
return MediaType.MULTIPART_FORM_DATA.includes(contentType);
}
MultiValueMap<String, Object> map = object.getRequestParams();
for (String name : map.keySet()) {
for (Object value : map.get(name)) {
if (value != null && !(value instanceof String)) {
return true;
}
}
}
return false;
}
private void writeForm(MultiValueMap<String, Object> form, MediaType contentType,
HttpOutputMessage outputMessage) throws IOException {
Charset charset;
if (contentType != null) {
outputMessage.getHeaders().setContentType(contentType);
charset = (contentType.getCharset() != null ? contentType.getCharset() : this.charset);
}
else {
outputMessage.getHeaders().setContentType(MediaType.APPLICATION_FORM_URLENCODED);
charset = this.charset;
}
StringBuilder builder = new StringBuilder();
for (Iterator<String> nameIterator = form.keySet().iterator(); nameIterator.hasNext();) {
String name = nameIterator.next();
for (Iterator<Object> valueIterator = form.get(name).iterator(); valueIterator.hasNext();) {
String value = (String) valueIterator.next();
builder.append(URLEncoder.encode(name, charset.name()));
if (value != null) {
builder.append('=');
builder.append(URLEncoder.encode(value, charset.name()));
if (valueIterator.hasNext()) {
builder.append('&');
}
}
}
if (nameIterator.hasNext()) {
builder.append('&');
}
}
final byte[] bytes = builder.toString().getBytes(charset.name());
outputMessage.getHeaders().setContentLength(bytes.length);
if (outputMessage instanceof StreamingHttpOutputMessage) {
StreamingHttpOutputMessage streamingOutputMessage = (StreamingHttpOutputMessage) outputMessage;
streamingOutputMessage.setBody(new StreamingHttpOutputMessage.Body() {
@Override
public void writeTo(OutputStream outputStream) throws IOException {
StreamUtils.copy(bytes, outputStream);
}
});
}
else {
StreamUtils.copy(bytes, outputMessage.getBody());
}
}
private void writeMultipart(final MultiValueMap<String, Object> parts, HttpOutputMessage outputMessage) throws IOException {
final byte[] boundary = generateMultipartBoundary();
Map<String, String> parameters = Collections.singletonMap("boundary", new String(boundary, "US-ASCII"));
MediaType contentType = new MediaType(MediaType.MULTIPART_FORM_DATA, parameters);
HttpHeaders headers = outputMessage.getHeaders();
headers.setContentType(contentType);
if (outputMessage instanceof StreamingHttpOutputMessage) {
StreamingHttpOutputMessage streamingOutputMessage = (StreamingHttpOutputMessage) outputMessage;
streamingOutputMessage.setBody(new StreamingHttpOutputMessage.Body() {
@Override
public void writeTo(OutputStream outputStream) throws IOException {
writeParts(outputStream, parts, boundary);
writeEnd(outputStream, boundary);
}
});
}
else {
writeParts(outputMessage.getBody(), parts, boundary);
writeEnd(outputMessage.getBody(), boundary);
}
}
private void writeParts(OutputStream os, MultiValueMap<String, Object> parts, byte[] boundary) throws IOException {
for (Map.Entry<String, List<Object>> entry : parts.entrySet()) {
String name = entry.getKey();
for (Object part : entry.getValue()) {
if (part != null) {
writeBoundary(os, boundary);
writePart(name, getHttpEntity(part), os);
writeNewLine(os);
}
}
}
}
@SuppressWarnings("unchecked")
private void writePart(String name, HttpEntity<?> partEntity, OutputStream os) throws IOException {
Object partBody = partEntity.getBody();
Class<?> partType = partBody.getClass();
HttpHeaders partHeaders = partEntity.getHeaders();
MediaType partContentType = partHeaders.getContentType();
for (HttpMessageConverter<?> messageConverter : this.partConverters) {
if (messageConverter.canWrite(partType, partContentType)) {
HttpOutputMessage multipartMessage = new MultipartHttpOutputMessage(os);
multipartMessage.getHeaders().setContentDispositionFormData(name, getFilename(partBody));
if (!partHeaders.isEmpty()) {
multipartMessage.getHeaders().putAll(partHeaders);
}
((HttpMessageConverter<Object>) messageConverter).write(partBody, partContentType, multipartMessage);
return;
}
}
throw new HttpMessageNotWritableException("Could not write request: no suitable HttpMessageConverter " +
"found for request type [" + partType.getName() + "]");
}
/**
* Generate a multipart boundary.
* <p>This implementation delegates to
* {@link MimeTypeUtils#generateMultipartBoundary()}.
*/
protected byte[] generateMultipartBoundary() {
return MimeTypeUtils.generateMultipartBoundary();
}
/**
* Return an {@link HttpEntity} for the given part Object.
* @param part the part to return an {@link HttpEntity} for
* @return the part Object itself it is an {@link HttpEntity},
* or a newly built {@link HttpEntity} wrapper for that part
*/
protected HttpEntity<?> getHttpEntity(Object part) {
return (part instanceof HttpEntity ? (HttpEntity<?>) part : new HttpEntity<Object>(part));
}
/**
* Return the filename of the given multipart part. This value will be used for the
* {@code Content-Disposition} header.
* <p>The default implementation returns {@link Resource#getFilename()} if the part is a
* {@code Resource}, and {@code null} in other cases. Can be overridden in subclasses.
* @param part the part to determine the file name for
* @return the filename, or {@code null} if not known
*/
protected String getFilename(Object part) {
if (part instanceof Resource) {
Resource resource = (Resource) part;
String filename = resource.getFilename();
if (filename != null && this.multipartCharset != null) {
filename = MimeDelegate.encode(filename, this.multipartCharset.name());
}
return filename;
}
else {
return null;
}
}
private void writeBoundary(OutputStream os, byte[] boundary) throws IOException {
os.write('-');
os.write('-');
os.write(boundary);
writeNewLine(os);
}
private static void writeEnd(OutputStream os, byte[] boundary) throws IOException {
os.write('-');
os.write('-');
os.write(boundary);
os.write('-');
os.write('-');
writeNewLine(os);
}
private static void writeNewLine(OutputStream os) throws IOException {
os.write('\r');
os.write('\n');
}
/**
* Implementation of {@link org.springframework.http.HttpOutputMessage} used
* to write a MIME multipart.
*/
private static class MultipartHttpOutputMessage implements HttpOutputMessage {
private final OutputStream outputStream;
private final HttpHeaders headers = new HttpHeaders();
private boolean headersWritten = false;
public MultipartHttpOutputMessage(OutputStream outputStream) {
this.outputStream = outputStream;
}
@Override
public HttpHeaders getHeaders() {
return (this.headersWritten ? HttpHeaders.readOnlyHttpHeaders(this.headers) : this.headers);
}
@Override
public OutputStream getBody() throws IOException {
writeHeaders();
return this.outputStream;
}
private void writeHeaders() throws IOException {
if (!this.headersWritten) {
for (Map.Entry<String, List<String>> entry : this.headers.entrySet()) {
byte[] headerName = getAsciiBytes(entry.getKey());
for (String headerValueString : entry.getValue()) {
byte[] headerValue = getAsciiBytes(headerValueString);
this.outputStream.write(headerName);
this.outputStream.write(':');
this.outputStream.write(' ');
this.outputStream.write(headerValue);
writeNewLine(this.outputStream);
}
}
writeNewLine(this.outputStream);
this.headersWritten = true;
}
}
private byte[] getAsciiBytes(String name) {
try {
return name.getBytes("US-ASCII");
}
catch (UnsupportedEncodingException ex) {
// Should not happen - US-ASCII is always supported.
throw new IllegalStateException(ex);
}
}
}
/**
* Inner class to avoid a hard dependency on the JavaMail API.
*/
private static class MimeDelegate {
public static String encode(String value, String charset) {
try {
return MimeUtility.encodeText(value, charset, null);
}
catch (UnsupportedEncodingException ex) {
throw new IllegalStateException(ex);
}
}
}
}
bean转换器实现
public class MyRequestBodyHttpMessageConverter extends
AbstractRequestBodyFormHttpMessageConverter<MyRequestBody> {
public MyRequestBodyHttpMessageConverter() {
super(MyRequestBody.class);
}
@Override
protected MyRequestBody buildObject(MultiValueMap<String, Object> valueMap) {
MyRequestBody parsed = new MyRequestBody();
parsed.setId(Long.valueOf((String)valueMap.get("id").get(0)));
parsed.setName((String)valueMap.get("name").get(0));
parsed.setRequestParams(valueMap);
return parsed;
}
}
最后是MyRequestBody DTO（MyRequestBody只是名称不同而已相同）
@JacksonXmlRootElement
public class MyRequestBody implements RequestParamSupport, Serializable {
@JsonIgnore
private transient MultiValueMap<String, Object> requestParams;
@JacksonXmlProperty
private Long id;
@JacksonXmlProperty
private String name;
//empty constructor, getters, setters, tostring, etc
@Override
public MultiValueMap<String, Object> getRequestParams() {
return requestParams;
}
}
**最后我的答案：**
我如何配置Spring接受两种类型？
如您所见，您必须将自己的表单数据添加到bean转换器。 （不要忘记从表单数据而不是@RequestBody映射时必须使用@ModelAttribute。）
我还应该将Rest控制器拆分为不同的文件吗？
不，那不是必须的，只需注册您的转换器。
答案 1 :(得分：1)
这是另一种解决方案（对我而言效果很好），它具有较少的Spring魔力，并使用了HttpServletRequestWrapper的旧方法。
在 WebMvcConfigurerAdapter 类中，现在我们不需要MessageConverter：
@Override
public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
//MyRequestBodyHttpMessageConverter converter = new MyRequestBodyHttpMessageConverter();
//FormHttpMessageConverter converter = new FormHttpMessageConverter();
//MediaType utf8FormEncoded = new MediaType("application","x-www-form-urlencoded", Charset.forName("UTF-8"));
//MediaType mediaType = MediaType.APPLICATION_FORM_URLENCODED; maybe UTF-8 is not needed
//converter.setSupportedMediaTypes(Arrays.asList(MediaType.APPLICATION_FORM_URLENCODED));
//converter.setSupportedMediaTypes(Arrays.asList(utf8FormEncoded));
//converters.add(converter);
converters.add(new MappingJackson2HttpMessageConverter());
converters.add(new MappingJackson2XmlHttpMessageConverter());
super.configureMessageConverters(converters);
}
此servlet过滤器实现中还有其他所有事情：
@WebFilter("/v1/notification")
public class MyRequestBodyFilter implements Filter {
private static class MyServletInputStream extends ServletInputStream {
private ByteArrayInputStream buffer;
public MyServletInputStream(byte[] contents) {
this.buffer = new ByteArrayInputStream(contents);
}
@Override
public int read() throws IOException {
return buffer.read();
}
@Override
public boolean isFinished() {
return buffer.available() == 0;
}
@Override
public boolean isReady() {
return true;
}
@Override
public void setReadListener(ReadListener listener) {
throw new RuntimeException("Not implemented");
}
}
private class MyHttpServletRequestWrapper extends HttpServletRequestWrapper{
MyHttpServletRequestWrapper(HttpServletRequest request) {
super(request);
}
@Override
public ServletInputStream getInputStream() throws IOException {
// converting the request parameters to the pojo and serialize it to XML
// the drawback of this way that the xml will be parsed again somewhere later
long id = Long.parseLong(getRequest().getParameter("id"));
String name = getRequest().getParameter("name");
MyRequestBody body = new MyRequestBody();
body.setId(id);
body.setName(name);
return new MyServletInputStream(new XmlMapper().writeValueAsBytes(body));
}
}
@Override
public void init(FilterConfig filterConfig) throws ServletException {
}
@Override
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
HttpServletRequest httpRequest = (HttpServletRequest) request;
chain.doFilter(new MyHttpServletRequestWrapper(httpRequest), response);
}
@Override
public void destroy() {
}
}
我在测试控制器中没有进行任何更改，因此方法的签名保持不变：
@PostMapping(value = "/v1/{token}",
consumes = MediaType.APPLICATION_XML_VALUE,
produces = MediaType.APPLICATION_JSON_VALUE)
public @ResponseBody MyResponseBody handleMessage(@PathVariable("token") String token, @RequestBody MyRequestBody transaction, HttpServletRequest request) throws Exception {
MyResponseBody body = new MyResponseBody();
body.setId(transaction.getId());
body.setName("received " + transaction.getName());
return body;
}
@PostMapping(consumes = MediaType.APPLICATION_FORM_URLENCODED_VALUE, value = "/v1/notification")
public ResponseEntity<String> handleNotifications(@ModelAttribute MyRequestBody transaction) {
return new ResponseEntity<String>(HttpStatus.OK);
}
答案 2 :(得分：1)
对于Spring boot 2.0.4-RELEASE，看来您不必做很多事情。
我进行了以下配置：
@Configuration
public class WebConfiguration implements WebMvcConfigurer {
@Override
public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
//MyRequestBodyHttpMessageConverter converter = new MyRequestBodyHttpMessageConverter();
FormHttpMessageConverter converter = new FormHttpMessageConverter();
//MediaType utf8FormEncoded = new MediaType("application","x-www-form-urlencoded", Charset.forName("UTF-8"));
//MediaType mediaType = MediaType.APPLICATION_FORM_URLENCODED; maybe UTF-8 is not needed
converter.setSupportedMediaTypes(Arrays.asList(MediaType.APPLICATION_FORM_URLENCODED));
//converter.setSupportedMediaTypes(Arrays.asList(utf8FormEncoded));
converters.add(converter);
MappingJackson2HttpMessageConverter conv1 = new MappingJackson2HttpMessageConverter();
conv1.getObjectMapper().registerModule(new JaxbAnnotationModule());
converters.add(conv1);
MappingJackson2XmlHttpMessageConverter conv = new MappingJackson2XmlHttpMessageConverter();
// required by jaxb annotations
conv.getObjectMapper().registerModule(new JaxbAnnotationModule());
converters.add(conv);
}
}
我曾经使用过您的DTO：
@XmlRootElement(name = "payment_transaction")
public class PaymentTransaction {
@XmlElement(name = "transaction_type")
public String transactionType;
@XmlElement(name = "transaction_id")
public String transactionId;
public String getTransactionType() {
return transactionType;
}
public void setTransactionType(String transactionType) {
this.transactionType = transactionType;
}
public String getTransactionId() {
return transactionId;
}
public void setTransactionId(String transactionId) {
this.transactionId = transactionId;
}
@Override
public String toString() {
return "PaymentTransaction [transactionType=" + transactionType
+ ", transactionId=" + transactionId + "]";
}
}
控制器：
@RestController
public class MyController {
/**
* https://stackoverflow.com/questions/34782025/http-post-request-with-content-type-application-x-www-form-urlencoded-not-workin/38252762#38252762
*/
@PostMapping(value = "/v1/{token}",
consumes = MediaType.APPLICATION_XML_VALUE,
produces = MediaType.APPLICATION_JSON_VALUE)
public @ResponseBody PaymentTransaction handleMessage(@PathVariable("token") String token,
@RequestBody PaymentTransaction transaction, HttpServletRequest request) throws Exception {
System.out.println("handleXmlMessage");
System.out.println(transaction);
PaymentTransaction body = new PaymentTransaction();
body.setTransactionId(transaction.getTransactionId());
body.setTransactionType("received: " + transaction.getTransactionType());
return body;
}
@PostMapping(consumes = MediaType.APPLICATION_FORM_URLENCODED_VALUE, value = "/v1/notification")
public ResponseEntity<String> handleNotifications(@ModelAttribute PaymentTransaction transaction) {
System.out.println("handleFormMessage");
System.out.println(transaction);
return new ResponseEntity<String>(HttpStatus.OK);
}
}
唯一要记住的主要事情是，似乎解析过的DTO填充是通过反射发生的：
供您输入
<payment_transaction>
<transaction_id>1</transaction_id>
<transaction_type>name</transaction_type>
</payment_transaction>
我收到了此回复（请参阅我的控制器）：
{
"transactionType": "received: null",
"transactionId": null
}
但是当我更改为DTO字段的名称时，它开始工作（根元素无关紧要，很有意思）：
<payment_transaction>
<transactionId>1</transactionId>
<transactionType>name</transactionType>
</payment_transaction>
结果：
{
"transactionType": "received: name",
"transactionId": "1"
}
查询字符串也是如此。我不知道要进行哪些更改以使Spring使用@ XmlRootElement / @ XmlElement中定义的名称来解析xml。