基于另一个问题，我为Tsv响应做了自己的HTTPMessageConverter。
TsvMessageConverter.java
public class TsvMessageConverter extends AbstractHttpMessageConverter<TsvResponse> { public static final MediaType MEDIA_TYPE = new MediaType("text", "tsv", Charset.forName("utf-8")); private static final Logger logger = LoggerFactory.getLogger(TsvMessageConverter.class); public TsvMessageConverter() { super(MEDIA_TYPE); } protected boolean supports(Class<?> clazz) { return TsvResponse.class.equals(clazz); } @Override protected TsvResponse readInternal(Class<? extends TsvResponse> clazz, HttpInputMessage inputMessage) throws IOException, HttpMessageNotReadableException { return null; } protected void writeInternal(TsvResponse tsvResponse, HttpOutputMessage output) throws IOException, HttpMessageNotWritableException { output.getHeaders().setContentType(MEDIA_TYPE); output.getHeaders().set("Content-Disposition", "attachment; filename="" + tsvResponse.getFilename() + """); final OutputStream out = output.getBody(); writeColumnTitles(tsvResponse, out); if (tsvResponse.getRecords() != null && tsvResponse.getRecords().size() != 0) { writeRecords(tsvResponse, out); } out.close(); } private void writeRecords(TsvResponse response, OutputStream out) throws IOException { List<String> getters = getObjectGetters(response); for (final Object record : response.getRecords()) { for (String getter : getters) { try { Method method = ReflectionUtils.findMethod(record.getClass(), getter); out.write(method.invoke(record).toString().getBytes(Charset.forName("utf-8"))); out.write('t'); } catch (IllegalAccessException | InvocationTargetException e) { logger.error("Erro ao transformar em CSV", e); } } out.write('n'); } } private List<String> getObjectGetters(TsvResponse response) { List<String> getters = new ArrayList<>(); for (Method method : ReflectionUtils.getAllDeclaredMethods(response.getRecords().get(0).getClass())) { String methodName = method.getName(); if (methodName.startsWith("get") && !methodName.equals("getClass")) { getters.add(methodName); } } sort(getters); return getters; } private void writeColumnTitles(TsvResponse response, OutputStream out) throws IOException { for (String columnTitle : response.getColumnTitles()) { out.write(columnTitle.getBytes()); out.write('t'); } out.write('n'); }}TsvResponse.java
public class TsvResponse { private final String filename; private final List records; private final String[] columnTitles; public TsvResponse(List records, String filename, String ... columnTitles) { this.records = records; this.filename = filename; this.columnTitles = columnTitles; } public String getFilename() { return filename; } public List getRecords() { return records; } public String[] getColumnTitles() { return columnTitles; }}然后在SpringContext.xml上添加以下内容：
<mvc:annotation-driven> <mvc:message-converters register-defaults="true"> <bean /> </mvc:message-converters> </mvc:annotation-driven>
因此，您可以像这样在控制器上使用：
@RequestMapping(value="/tsv", method= RequestMethod.GET, produces = "text/tsv") @ResponseBody public TsvResponse tsv() { return new TsvResponse(myListOfPojos, "fileName.tsv", "Name", "Email", "Phone", "Mobile"); }
