spring mvc在3.0中引入了responsebody这个注解,但是在源码中StringHttpMessageConverter 将默认编码写成了ISO-8859-1,并且是static final的,从网上搜了一堆,通过配置注入来解决,但是都是3.1的解决办法;看来只能通过重写+注入解决了,果然在网上搜到了一个贴了,试了下,可行~ 以下是帖子的一段~
@ResponseBody默认采取
public static final Charset DEFAULT_CHARSET = Charset.forName("ISO-8859-1");
的方式,我要修改为UTF-8,所以,就直接copy了源码,但是修改了一下里边的默认编码
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.UnsupportedEncodingException;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.List;
import org.springframework.http.HttpInputMessage;
import org.springframework.http.HttpOutputMessage;
import org.springframework.http.MediaType;
import org.springframework.http.converter.AbstractHttpMessageConverter;
import org.springframework.util.FileCopyUtils;
/**
* @Author : wangxl
* @Date : 2013-1-17
*/
public class UTF8StringHttpMessageConverter extends AbstractHttpMessageConverter<String> {
public static final Charset DEFAULT_CHARSET = Charset.forName("UTF-8");
private final List<Charset> availableCharsets;
private boolean writeAcceptCharset = true;
public UTF8StringHttpMessageConverter() {
super(new MediaType[] {
new MediaType("text", "plain",
UTF8StringHttpMessageConverter.DEFAULT_CHARSET),
MediaType.ALL });
this.availableCharsets = new ArrayList<Charset>(Charset.availableCharsets()
.values());
}
public void setWriteAcceptCharset(boolean writeAcceptCharset) {
this.writeAcceptCharset = writeAcceptCharset;
}
public boolean supports(Class<?> clazz) {
return String.class.equals(clazz);
}
@SuppressWarnings("rawtypes")
protected String readInternal(Class clazz, HttpInputMessage inputMessage)
throws IOException {
Charset charset = getContentTypeCharset(inputMessage.getHeaders()
.getContentType());
return FileCopyUtils.copyToString(new InputStreamReader(inputMessage.getBody(),
charset));
}
protected Long getContentLength(String s, MediaType contentType) {
Charset charset = getContentTypeCharset(contentType);
try {
return Long.valueOf(s.getBytes(charset.name()).length);
} catch (UnsupportedEncodingException ex) {
throw new InternalError(ex.getMessage());
}
}
protected void writeInternal(String s, HttpOutputMessage outputMessage)
throws IOException {
if (this.writeAcceptCharset) {
outputMessage.getHeaders().setAcceptCharset(getAcceptedCharsets());
}
Charset charset = getContentTypeCharset(outputMessage.getHeaders()
.getContentType());
FileCopyUtils.copy(s, new OutputStreamWriter( outputMessage.getBody(),
charset));
}
protected List<Charset> getAcceptedCharsets() {
return this.availableCharsets;
}
private Charset getContentTypeCharset(MediaType contentType) {
if ((contentType != null) && (contentType.getCharSet() != null)) {
return contentType.getCharSet();
}
return DEFAULT_CHARSET;
}
}
然后,修改spring的注入配置,将自己编写的类注入到org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter中,配置代码如下
<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
<property name="messageConverters">
<list>
<bean id="utf8StringHttpMessageConverter"
class="**.UTF8StringHttpMessageConverter" />
</list>
</property>
</bean>