我想从 Controller 获取处理后的 JSP 的 HTML 内容。我正在使用 View 的 Tiles 实现。
在我的场景中,我想从 jsp 生成 HTML 并将其作为 JSONP 发送。
所以我需要从 Controller 获取生成的 html。
最佳答案
给你!
这对我来说非常有效:
@Service
public class CustomViewProcessor
{
private static Logger m_log = LoggerFactory.getLogger(CustomViewProcessor.class);
@Autowired
@Qualifier("tilesViewResolver")
private ViewResolver viewResolver;
@Autowired
@Qualifier("commonInterceptor")
CommonInterceptor commonInterceptor;
public String renderView(HttpServletRequest request, Model model, String viewName)
{
ModelAndView mav = new ModelAndView();
mav.addAllObjects(model.asMap());
mav.setViewName(viewName);
commonInterceptor.updateRequest(mav, request);
try
{
View view = viewResolver.resolveViewName(mav.getViewName(), request.getLocale());
HttpServletResponse localResponse = new MyHttpServletResponseWrapper(new MockHttpServletResponse());
view.render(mav.getModel(), request, localResponse);
return localResponse.toString();
}
catch (Exception e)
{
return "";
}
}
public boolean doesViewExist(HttpServletRequest request, String viewName)
{
try
{
if (viewResolver.resolveViewName(viewName, request.getLocale()) != null)
{
return true;
}
}
catch (Exception e)
{
m_log.error(e.getMessage(), e);
}
return false;
}
static class MyHttpServletResponseWrapper extends HttpServletResponseWrapper
{
private StringWriter sw = new StringWriter();
public MyHttpServletResponseWrapper(HttpServletResponse response)
{
super(response);
}
public PrintWriter getWriter() throws IOException
{
return new PrintWriter(sw);
}
public ServletOutputStream getOutputStream() throws IOException
{
throw new UnsupportedOperationException();
}
public String toString()
{
return sw.toString();
}
}
}
关于java - 在 Spring 中,如何从 HTTPServletResponse 对象获取 HTML 作为字符串?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/18365694/