Я юзаю классы через Аякс, затем сервлет:
| Код |
params.className = "pgo.survey.shp.ShpSaveNoNumChild";
var saveRes = smstsSave2(params);
function smstsSave2(params){
var xmlDom = new XMLDOM('http://localhost:8080/save', params);
var error = xmlDom.root.selectSingleNode("//ERROR");
return new XmlSaveResult(xmlDom);
}
function XMLDOM(url, params) {
this.isError=false;
this.XMLDOMDoc=new ActiveXObject("Microsoft.XMLDOM");
this.XMLDOMDoc.setProperty("SelectionLanguage", "XPath");
this.root=null;
this.XMLHttpRequest = (new XHRequest(url, params)).req
try{
// alert(this.XMLHttpRequest.transport.responseText)
this.XMLDOMDoc.loadXML(this.XMLHttpRequest.responseText);
//alert(this.XMLHttpRequest.transport.responseText)
if (this.XMLDOMDoc.parseError.errorCode != 0) {
var myErr = this.XMLDOMDoc.parseError;
this.isError=true;
alert("Ошибка загрузки данных в XMLDOMDoc \n\n" + myErr.reason);
}
if(!this.isError){
this.root=this.XMLDOMDoc.getElementsByTagName("ROOT")[0]
}
} catch(e){}
}
function XHRequest(url, params, errorMsg){
var req=new ActiveXObject("Microsoft.XMLHTTP");
this.req=req;
// this.req.asynchronous = false;
if (req) {
req.onreadystatechange =function()
{
if(req.readyState == 4 && req.status != 200) {
if(errorMsg!=null)
alert("Ошибка получения данных с сервера.\n"+
errorMsg+
"\nXMLHttpRequest.status="+req.status);
}
}
req.open("POST", url, false);
req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded;");
req.send(params);
}
}
|
теперь сам сервлет, в моем случае save:
| Код |
package utils.save;
import utils.Str;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.ServletException;
import java.io.IOException;
import java.io.PrintStream;
import java.lang.reflect.Method;
import java.lang.reflect.InvocationTargetException;
import pgo.auth.Auth;
import log.L;
public class SaveServlet extends HttpServlet {
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
if(!Auth.isAuth(request,response)) return;
response.setContentType("text/html; charset=windows-1251");
request.setCharacterEncoding("Cp1251");
PrintStream out = new PrintStream(response.getOutputStream ());//response.getOutputStream();
String className = Str.objToStr(request.getParameter("className"));
SaveResult result =null;
Class clazz = null;
try {
clazz = Class.forName(className);
try {
Object object = clazz.newInstance();
try {
Method method = object.getClass().getMethod("run", new Class[] {HttpServletRequest.class});
try {
result = (SaveResult)method.invoke(object, new Object[] {request});
} catch (InvocationTargetException e) {
e.printStackTrace(); //To change body of catch statement use File | Settings | File Templates.
}
} catch (NoSuchMethodException e) {
e.printStackTrace(); //To change body of catch statement use File | Settings | File Templates.
}
} catch (InstantiationException e) {
e.printStackTrace(); //To change body of catch statement use File | Settings | File Templates.
} catch (IllegalAccessException e) {
e.printStackTrace(); //To change body of catch statement use File | Settings | File Templates.
}
} catch (ClassNotFoundException e) {
e.printStackTrace(); //To change body of catch statement use File | Settings | File Templates.
}
out.println("<ROOT>");
if(result!=null){
L.info(result.getResultXML());
out.println(result.getResultXML());
} else {
out.println("<RESULT><ERROR>\n<MSG>Не найден класс "+className+"</MSG>\n</ERROR></RESULT>");
}
out.println("</ROOT>");
}
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doPost(request, response);
}
}
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