public static void handleActionRedirect(Context context, String path, String baseUrl)
throws IOException {
String method;
String location;
if (!path.contains("@")) {
method = HttpMethod.GET;
location = path;
} else {
int lastIndex = path.indexOf("@") + 1;
method = path.substring(lastIndex);
location = path.substring(0, lastIndex - 1);
}
StringBuilder sb = new StringBuilder("");
String param = null;
if (path.contains("?")) {
int lastIndex2 = path.indexOf("?") + 1;
param = path.substring(lastIndex2);
String[] params = param.split("&");
for (String para : params) {
String[] p = para.split("=");
sb.append(String.format("<input name='%s' value='%s' />", p[0], p[1]));
}
method = method.substring(0, method.indexOf("?"));
}
if (HttpMethod.GET.equalsIgnoreCase(method)) {
String pa = param == null ? "" : "?" + CommonUtil.replaceChinese2Utf8(param);
context.getResponse().sendRedirect(baseUrl + location + pa);
return;
}
String _method = "";
if (HttpMethod.PUT.equalsIgnoreCase(method) || HttpMethod.DELETE.equalsIgnoreCase(method)) {
_method = new String(method);
method = HttpMethod.POST;
}
String action = baseUrl + location;
// 构造一个Form表单模拟客户端发送新的Action请求
String format =
"<form id='ACTION_REDIRECT_FORM' action='%s' method='%s' ><input name='_method' value='%s' />%s<input type='submit' /></form>";
String form = String.format(format, action, method, _method, sb.toString());
String js = "<script>document.getElementById('ACTION_REDIRECT_FORM').submit();</script>";
context.getWriter().print(form + js);
}
private void handleResult() throws Exception {
this.exeActionLog();
if (retn == null) return;
String baseUrl =
(String) this.context.getServletContext().getAttribute(MVCConfigConstant.BASE_URL_KEY);
if (File.class.isAssignableFrom(retn.getClass())) {
File file = (File) retn;
this.handleDownload(file);
return;
} else if (File[].class.isAssignableFrom(retn.getClass())) {
File[] files = (File[]) retn;
String fileName = CommonUtil.getNowTime("yyyyMMddHHmmss") + "_" + "download.zip";
HttpServletResponse resp = this.context.getResponse();
resp.reset();
resp.setContentType("application/zip");
resp.addHeader("Content-Disposition", "attachment; filename=\"" + fileName + "\"");
ServletOutputStream outputStream = resp.getOutputStream();
ZipOutputStream zip = new ZipOutputStream(outputStream);
for (File file : files) {
byte[] b = new byte[1024];
int len;
zip.putNextEntry(new ZipEntry(file.getName()));
FileInputStream fis = new FileInputStream(file);
while ((len = fis.read(b)) != -1) {
zip.write(b, 0, len);
}
fis.close();
}
zip.flush();
zip.close();
outputStream.flush();
return;
}
if (!String.class.isAssignableFrom(retn.getClass())) {
String mimeType = null;
Produces prod = this.method.getAnnotation(Produces.class);
if (prod != null && prod.value() != null && prod.value().length > 0)
mimeType = prod.value()[0];
if (mimeType == null || mimeType.trim().length() == 0)
mimeType =
this.context.getRequest().getParameter(MVCConfigConstant.HTTP_HEADER_ACCEPT_PARAM);
if (mimeType == null || mimeType.trim().length() == 0) {
String contentType = this.context.getRequest().getContentType();
if (contentType != null) {
this.context.getResponse().setContentType(contentType);
mimeType = contentType.split(";")[0];
}
}
if (this.context.getWriter() == null)
this.context.setWriter(this.context.getResponse().getWriter());
if (MIMEType.JSON.equals(mimeType) || "json".equalsIgnoreCase(mimeType)) {
this.context.getResponse().setContentType(MIMEType.JSON);
this.context.getWriter().print(CommonUtil.toJson(retn));
} else if (MIMEType.XML.equals(mimeType) || "xml".equalsIgnoreCase(mimeType)) {
Class<?> cls = retn.getClass();
if (Collection.class.isAssignableFrom(cls)) {
Class<?> _cls = ClassUtil.getPojoClass(this.method);
if (_cls != null) cls = _cls;
}
XMLWriter writer = BeanXMLUtil.getBeanXMLWriter(retn);
writer.setCheckStatck(true);
writer.setSubNameAuto(true);
writer.setClass(cls);
writer.setRootElementName(null);
this.context.getResponse().setContentType(MIMEType.XML);
this.context.getWriter().print(writer.toXml());
} else {
this.context.getWriter().print("暂时不支持JSON 、XML以外的表述形式");
}
this.context.getWriter().flush();
return;
}
List<String> produces = this.context.getActionConfigBean().getProduces();
if (produces != null && produces.size() > 0)
for (String produce : produces) {
this.context.getResponse().setContentType(produce);
break;
}
String re = String.valueOf(retn);
for (Field f : fields) {
Method getter = ru.getGetter(f.getName());
if (getter == null) continue;
String name = f.getName();
if (this.context.getModel().containsKey(name)) continue;
this.context.getModel().put(name, getter.invoke(actionObject));
}
this.context.getModel().put(MVCConfigConstant.BASE_URL_KEY, baseUrl);
// 客户端重定向
if (re.startsWith(RenderType.REDIRECT + ":")) {
String url = re.substring((RenderType.REDIRECT + ":").length());
String location = url;
this.context.getResponse().sendRedirect(CommonUtil.replaceChinese2Utf8(location));
return;
} else if (re.startsWith(RenderType.ACTION + ":")) {
String path = re.substring((RenderType.ACTION + ":").length());
// ACTION 重定向
handleActionRedirect(context, path, baseUrl);
return;
} else if (re.startsWith(RenderType.OUT + ":")) {
String location = re.substring((RenderType.OUT + ":").length());
this.context.getWriter().print(location);
this.context.getWriter().flush();
return;
} else if (re.startsWith(RenderType.FORWARD + ":")) {
String location = re.substring((RenderType.FORWARD + ":").length());
HttpServletRequest request = this.context.getRequest();
request.setAttribute(MVCConfigConstant.REQ_PARAM_MAP_NAME, this.context.getQueryParamMap());
for (Iterator<Entry<String, Object>> it = this.context.getModel().entrySet().iterator();
it.hasNext(); ) {
Entry<String, Object> entry = it.next();
request.setAttribute(entry.getKey(), entry.getValue());
}
// 服务端跳转
request
.getRequestDispatcher(MVCConfigConstant.FORWARD_BASE_PATH + "/" + location)
.forward(request, this.context.getResponse());
return;
} else if (re.startsWith(RenderType.FREEMARKER + ":")) {
String location = re.substring((RenderType.FREEMARKER + ":").length());
// FreeMarker 渲染
Configuration cfg = new Configuration();
// 指定模板从何处加载的数据源，这里设置成一个文件目录。
cfg.setDirectoryForTemplateLoading(
new File(ConfigConstant.ROOT_PATH + MVCConfigConstant.FORWARD_BASE_PATH));
// 指定模板如何检索数据模型
cfg.setObjectWrapper(new DefaultObjectWrapper());
cfg.setDefaultEncoding("utf-8");
Template template = cfg.getTemplate(location);
template.setEncoding("utf-8");
template.process(this.context.getModel(), this.context.getWriter());
return;
} else if (re.startsWith(RenderType.VELOCITY + ":")) {
String location = re.substring((RenderType.VELOCITY + ":").length());
File viewsDir = new File(ConfigConstant.ROOT_PATH + MVCConfigConstant.FORWARD_BASE_PATH);
// 初始化Velocity模板引擎
Properties p = new Properties();
p.setProperty("resource.loader", "file");
p.setProperty(
"file.resource.loader.class",
"org.apache.velocity.runtime.resource.loader.FileResourceLoader");
p.setProperty("file.resource.loader.path", viewsDir.getAbsolutePath());
p.setProperty("file.resource.loader.cache", "true");
p.setProperty("file.resource.loader.modificationCheckInterval", "2");
p.setProperty("input.encoding", "utf-8");
p.setProperty("output.encoding", "utf-8");
VelocityEngine ve = new VelocityEngine(p);
// Velocity获取模板文件，得到模板引用
org.apache.velocity.Template t = ve.getTemplate(location);
VelocityContext velocityCtx = new VelocityContext();
for (Iterator<Entry<String, Object>> it = this.context.getModel().entrySet().iterator();
it.hasNext(); ) {
Entry<String, Object> e = it.next();
velocityCtx.put(e.getKey(), e.getValue());
}
// 将环境变量和输出部分结合
t.merge(velocityCtx, this.context.getWriter());
this.context.getWriter().flush();
return;
} else {
List<ResultConfigBean> results = this.context.getActionConfigBean().getResult();
if (results == null || results.size() == 0) {
this.context.getWriter().print(retn);
this.context.getWriter().flush();
return;
}
boolean isOut = true;
for (ResultConfigBean r : results) {
if (!"_props_".equals(r.getName()) && !r.getName().equals(re) && !"".equals(re)) {
continue;
}
isOut = false;
String type = r.getType();
String location = r.getLocation();
if (RenderType.REDIRECT.equalsIgnoreCase(type)) {
this.context.getResponse().sendRedirect(CommonUtil.replaceChinese2Utf8(location));
return;
} else if (RenderType.FORWARD.equalsIgnoreCase(type)) {
HttpServletRequest request = this.context.getRequest();
request.setAttribute(
MVCConfigConstant.REQ_PARAM_MAP_NAME, this.context.getQueryParamMap());
fields = ru.getFields();
if (fields == null) return;
for (Iterator<Entry<String, Object>> it = this.context.getModel().entrySet().iterator();
it.hasNext(); ) {
Entry<String, Object> entry = it.next();
request.setAttribute(entry.getKey(), entry.getValue());
}
// 服务端跳转
request
.getRequestDispatcher(MVCConfigConstant.FORWARD_BASE_PATH + location)
.forward(request, this.context.getResponse());
return;
} else if (RenderType.FREEMARKER.equalsIgnoreCase(type)) {
// FreeMarker 渲染
Configuration cfg = new Configuration();
// 指定模板从何处加载的数据源，这里设置成一个文件目录。
cfg.setDirectoryForTemplateLoading(
new File(ConfigConstant.ROOT_PATH + MVCConfigConstant.FORWARD_BASE_PATH));
// 指定模板如何检索数据模型
cfg.setObjectWrapper(new DefaultObjectWrapper());
cfg.setDefaultEncoding("utf-8");
Template template = cfg.getTemplate(location);
template.setEncoding("utf-8");
template.process(this.context.getModel(), this.context.getWriter());
return;
} else if (RenderType.ACTION.equalsIgnoreCase(type)) {
// ACTION 重定向
handleActionRedirect(context, location, baseUrl);
return;
} else if (RenderType.OUT.equalsIgnoreCase(type) || location.trim().length() == 0) {
this.context.getWriter().print(location);
this.context.getWriter().flush();
return;
}
}
if (isOut) {
this.context.getWriter().print(retn);
this.context.getWriter().flush();
}
}
}