protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
String action = request.getParameter("action");
try {
// System.out.println("in mail servlet");
if (action.equals("show")) {
List<EmailSetup> emailSetup_List = emailSetup_lf.findAll();
JSONObject returnJSON = new JSONObject();
JSONArray emailSetup_Array = ListToJSONArray(emailSetup_List);
returnJSON.put("success", true);
returnJSON.put("rows", emailSetup_Array);
// System.out.println(returnJSON.toJSONString());
sendJSONResponse(returnJSON, response);
} else if (action.equals("add")) {
if( emailSetup_lf.count() >= 1 ){
sendJSONResponseSimple("fail", response);
return;
}
// all data is sent to the servelet as strings
// when creating cast to proper DB type
String smtp_host = request.getParameter("SMTP_HOST");
String smtp_user = request.getParameter("SMTP_USER");
String smtp_pwd = request.getParameter("SMTP_PWD");
String smtp_port = request.getParameter("SMTP_PORT");
String smtp_from = request.getParameter("SMTP_FROM");
if ((!smtp_host.equals(""))
&& (!smtp_user.equals(""))
&& (!smtp_pwd.equals(""))
&& (!smtp_port.equals(""))
&& (!smtp_from.equals(""))) {
EmailSetup new_email_setup_record = new EmailSetup();
new_email_setup_record.setSmtpHost(smtp_host);
new_email_setup_record.setSmtpUser(smtp_user);
new_email_setup_record.setSmtpPwd(smtp_pwd);
new_email_setup_record.setSmtpPort(smtp_port);
new_email_setup_record.setSmtpFrom(smtp_from);
emailSetup_lf.create(new_email_setup_record);
// LOG
systemLog("Create (MailServerSevlet)", "Created Mail Server: " + new_email_setup_record.toString(), request);
}
} else if (action.equals("edit")) {
// all data is sent to the servelet as strings
// when creating cast to proper DB type
String e_id = request.getParameter("E_ID");
String smtp_host = request.getParameter("SMTP_HOST");
String smtp_user = request.getParameter("SMTP_USER");
String smtp_pwd = request.getParameter("SMTP_PWD");
String smtp_port = request.getParameter("SMTP_PORT");
String smtp_from = request.getParameter("SMTP_FROM");
if ((!smtp_host.equals(""))
&& (!smtp_user.equals(""))
&& (!smtp_pwd.equals(""))
&& (!smtp_port.equals(""))
&& (!smtp_from.equals(""))) {
EmailSetup email_setup_record = emailSetup_lf.find(new BigDecimal(e_id));
email_setup_record.setSmtpHost(smtp_host);
email_setup_record.setSmtpUser(smtp_user);
email_setup_record.setSmtpPwd(smtp_pwd);
email_setup_record.setSmtpPort(smtp_port);
email_setup_record.setSmtpFrom(smtp_from);
// CALL EDIT!
emailSetup_lf.edit(email_setup_record);
// LOG
systemLog("Update (MailServerSevlet)", "Updated Mail Server: " + email_setup_record.toString(), request);
} // systemLog
// <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
/**
* Handles the HTTP <code>GET</code> method.
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
}
/**
* Handles the HTTP <code>POST</code> method.
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
}
/**
* Returns a short description of the servlet.
* @return a String containing servlet description
*/
@Override
public String getServletInfo() {
return "Short Description";
}// </editor-fold>
}
我现在尝试使用 JSON 简单响应，但它不断调用错误的错误消息
var db_drivers_Store = new Ext.data.JsonStore({
//url: '../DataBaseDriversServelet_show',
url: '../DataBaseDriversServelet?action=show',
root: 'rows',
idProperty: 'ID',
fields: [{
name: 'ID',
type: 'int'
},{
name: 'TYPE',
type: 'string'
},{
name: 'NAME',
type: 'string'
},{
name: 'ADDRESS',
type: 'string'
},{
name: 'PORT',
type: 'int'
}]
});
// ADD
var add_db_driver_Window = new Ext.Window({
title: 'Add DB Driver',
width: 400,
height:200,
minWidth: 300,
minHeight: 200,
layout: 'fit',
plain:true,
bodyStyle:'padding:5px;',
buttonAlign:'center',
border: true,
closable:false,
modal:true,
shim: false,
frame: true,
// forceLayout: true,
items: add_db_driver_FormPanel,
buttons: [{
text: 'Submit',
handler: function(){
if( add_db_driver_FormPanel.getForm().isValid()){
add_db_driver_FormPanel.getForm().submit({
success: function(){
add_db_driver_Window.hide();
db_drivers_Store.load();
add_db_driver_FormPanel.getForm().reset();
},
failure: function(){}
});
}else{
Ext.MessageBox.alert('Database Drivers', 'Could not Submit. Make sure all fields are valid.');
}
} // submit handler
},{
text: 'Cancel',
handler: function(){
add_db_driver_Window.hide();
add_db_driver_FormPanel.getForm().reset();
} // cancel handler
}]
});
// DBDRIVER - ADD POP UP UI (END)
// DBDRIVER - EDIT POP UP UI (START)
var edit_db_driver_FormPanel = new Ext.FormPanel({
url: '../DataBaseDriversServelet?action=edit',
// url:'../DataBaseDriversServelet_edit',
labelWidth: 125,
frame: true,
bodyStyle:'padding:5px 5px 0',
defaultType: 'textfield',
id: 'edit_db_driver_FormPanel',
items: [
{
fieldLabel: 'Type',
id: 'TYPE_edit_db_driver_FormPanel',
allowBlank: false,
name: 'TYPE',
width:190
},{
fieldLabel: 'Name',
id: 'NAME_edit_db_driver_FormPanel',
allowBlank: false,
name: 'NAME',
width:190
},{
fieldLabel: 'Address',
id: 'ADDRESS_edit_db_driver_FormPanel',
allowBlank: false,
name: 'ADDRESS',
width:190
},new Ext.form.NumberField ({
fieldLabel: 'Port',
id: 'PORT_edit_db_driver_FormPanel',
allowBlank: false,
name: 'PORT',
width:190
})
]
});
var recordToEdit;
var edit_db_driver_Window = new Ext.Window({
title: 'Edit DB Driver',
width: 400,
height:200,
minWidth: 300,
minHeight: 200,
layout: 'fit',
plain:true,
bodyStyle:'padding:5px;',
buttonAlign:'center',
border: false,
closable:false,
modal:true,
shim: false,
frame: true,
items: edit_db_driver_FormPanel,
buttons: [{
text: 'Submit',
handler: function(){
var db_driver_id = recordToEdit.get("ID");
if(edit_db_driver_FormPanel.getForm().isValid()){
edit_db_driver_FormPanel.getForm().submit({
// url:'../DataBaseDriversServelet_edit',
url: '../DataBaseDriversServelet?action=edit',
waitMsg:'Saving Data...',
params:{
ID: db_driver_id
},
success: function(){
edit_db_driver_Window.hide();
db_drivers_Store.load();
},
failure: function(){}
});
}else{
Ext.MessageBox.alert('Database Drivers', 'Could not Submit. Make sure all fields are valid.');
}
} // submit handler
},{
text: 'Cancel',
handler: function(){
edit_db_driver_Window.hide();
edit_db_driver_FormPanel.getForm().reset();
} // cancel handler
}]
});
// DBDRIVER - EDIT POP UP UI (END)
// DBDRIVER - POP UP UI (END)
var db_driver_btn_panel = [{
id: 'db_driver_add_btn',
text: 'Add',
iconCls: 'adddb',
handler: (function(){
add_db_driver_Window.show();
}) // add handler function
}, {
text: 'Edit',
iconCls: 'edit',
handler: (function(){
var edit_selModel = Ext.getCmp("db_drivers_UPanel").getSelectionModel();
var selRecord;
if(edit_selModel.getSelected()== undefined){
Ext.message.msg('Notice','Select Database Driver first');
}else{
selRecord = edit_selModel.getSelected();
recordToEdit = selRecord;
Ext.getCmp("TYPE_edit_db_driver_FormPanel").setValue(recordToEdit.get("TYPE"));
Ext.getCmp("NAME_edit_db_driver_FormPanel").setValue(recordToEdit.get("NAME"));
Ext.getCmp("ADDRESS_edit_db_driver_FormPanel").setValue(recordToEdit.get("ADDRESS"));
Ext.getCmp("PORT_edit_db_driver_FormPanel").setValue(recordToEdit.get("PORT"));
edit_db_driver_Window.show();
} // end if
}) // edit handler function
},{
text: 'Delete',
iconCls: 'delete',
handler: function() {
//get currently selected record
var rec = Ext.getCmp('db_drivers_UPanel').getSelectionModel().getSelected();
//rec will be undefined if nothing is selected so check for this.
if(rec){
//open delete confirmation box
Ext.MessageBox.confirm('Delete Confirmation', 'Delete Driver?', function(btn)
{//check if the user selected 'yes'
if (btn == 'yes'){
//create ajax request to send delete requesdt to the servlete
Ext.Ajax.request({
//specify servlet url
//url : '../DataBaseDriversServelet_delete' ,
url: '../DataBaseDriversServelet?action=delete',
params : {
//D_ID = driver id, send through as param to the servlet
'D_ID': rec.data.ID
},
//use post
method: 'POST',
//method will run if server returns success message
success: function ( result, request ) {
// Ext.MessageBox.alert('Success','Post Deleted');
Ext.message.msg('Driver - Removed.', 'Driver has successfully been removed!');
//Ext.message.msg('Success','Driver Deleted');
db_drivers_Store.load();
},
//method will run if server returns failure message
failure: function ( result, request) {
Ext.MessageBox.alert('Failure','Driver Deletion Failed');
}
});//ajax request
}//if btn
});//confirm box
}else
{
Ext.message.msg('Notice','Select driver first');
}
} // function
}];
var db_drivers_UPanel = new Ext.Panel({
id: 'databaseDriversUtil-form',
labelAlign: 'left',
bodyStyle:'padding:5px',
frame: true,
boder: true,
width: 450,
title:"Database Drivers",
items:[{
xtype: 'grid',
id: 'db_drivers_UPanel',
tbar: db_driver_btn_panel,
ds: db_drivers_Store, // ds = datastore
cm: db_drivers_ColModel, // cm = column model
autoScroll:true,
height:220
}]
});
return db_drivers_UPanel;
}
// Database Drivers UI (End)
// Database Setup UI (Start)
Ext.Dyno.databaseUtil.databaseSetupUtilPanel = function(){
var db_setup_Store = new Ext.data.JsonStore({
//url: '../DataBaseSetupServelet',
url: '../DataBaseSetupServelet?action=show',
root: 'rows',
idProperty: 'ID',
fields: [{
name: 'ID',
type: 'int'
},{
name: 'TYPE',
type: 'string'
},{
name: 'DRIVERNAME',
type: 'string'
},{
name: 'CONNECTSTART',
type: 'string'
},{
name: 'DEFAULTPORT',
type: 'int'
}]
});
// this displays the data in the gird
db_setup_Store.load();
var db_setup_ColModel = new Ext.grid.ColumnModel([
{
header: "ID",
width: 70,
sortable: true,
locked:false,
hidden: true,
dataIndex: 'ID'
},{
header: "Type",
width: 70,
sortable: true,
dataIndex: 'TYPE'
},{
header: "Driver Name",
width: 150,
sortable: true,
dataIndex: 'DRIVERNAME'
},{
header: "Connect Start",
width: 100,
sortable: true,
dataIndex: 'CONNECTSTART'
},{
header: "Default Port",
width: 80,
sortable: true ,
dataIndex: 'DEFAULTPORT'
}
]);
// DBTYPE - POP UP UI (START)
// DBTYPE - ADD POP UP UI (START)
var add_db_type_FormPanel = new Ext.FormPanel({
//url:'../DataBaseSetupServelet_add',
url: '../DataBaseSetupServelet?action=add',
labelWidth: 125,
frame: true,
bodyStyle:'padding:5px 5px 0',
defaultType: 'textfield',
items: [
{
fieldLabel: 'Type',
name: 'TYPE',
allowBlank: false,
width:190
},{
fieldLabel: 'Driver Name',
name: 'DRIVERNAME',
allowBlank: false,
width:190
},{
fieldLabel: 'Connect Start',
name: 'CONNECTSTART',
allowBlank: false,
width:190
},new Ext.form.NumberField ({
fieldLabel: 'Default Port',
name: 'DEFAULTPORT',
allowBlank: false,
width:190
})
]
});
// ADD
var add_db_type_Window = new Ext.Window({
title: 'Add DB Type',
width: 400,
height:200,
minWidth: 300,
minHeight: 200,
layout: 'fit',
plain:true,
bodyStyle:'padding:5px;',
buttonAlign:'center',
border: false,
//get currently selected record
var rec = Ext.getCmp('db_setup_UPanel').getSelectionModel().getSelected();
//rec will be undefined if nothing is selected so check for this.
if(rec){
//open delete confirmation box
Ext.MessageBox.confirm('Delete Confirmation', 'Delete Setup?', function(btn)
{//check if the user selected 'yes'
if (btn == 'yes'){
//create ajax request to send delete requesdt to the servlete
Ext.Ajax.request({
//specify servlet url
// url : '../DataBaseSetupServelet_delete' ,
url: '../DataBaseSetupServelet?action=delete',
params : {
//D_ID = driver id, send through as param to the servlet
'ID': rec.data.ID
},
//use post
method: 'POST',
//method will run if server returns success message
success: function ( result, request ) {
//Ext.MessageBox.alert('Success','Post Deleted');
//Ext.message.msg('Success','Setup Deleted');
Ext.message.msg('Setup - Removed.', 'Setup has successfully been removed!');
db_setup_Store.load();
},
//method will run if server returns failure message
failure: function ( result, request) {
Ext.MessageBox.alert('Failure','Setup Deletion Failed');
}
});//ajax request
}//if btn
});//confirm box
}else
{
Ext.message.msg('Notice','Select setup first');
}
} // function
}];
var db_setup_UPanel = new Ext.Panel({
id: 'databaseSetupUtil-form',
labelAlign: 'left',
bodyStyle:'padding:5px',
frame: true,
boder: true,
width: 450,
title:"Database Setup",
items:[{
xtype: 'grid',
id:'db_setup_UPanel',
tbar: db_setup_btn_panel,
ds: db_setup_Store, // ds = datastore
cm: db_setup_ColModel, // cm = column model
autoScroll:true,
height:220
}]
});
return db_setup_UPanel;
}
var cat_config_Store = new Ext.data.JsonStore({
url: '../configureCatogoriesServelet?action=show',
root: 'rows',
idProperty: 'C_ID',
fields: [{
name: 'C_ID',
type: 'int'
},{
name: 'C_NAME',
type: 'string'
},{
name: 'C_DESCRIPTION',
type: 'string'
}]
});
// this displays the data in the gird
cat_config_Store.load();
var categoryGridTable = new Ext.grid.GridPanel({
region:'center',
//columnWidth: 0.70,
layout: 'fit',
ds: cat_config_Store,
//cm: colModel,
columns:[
{
header: "ID",
width: 70,
sortable: true,
locked:false,
hidden: true,
dataIndex: 'C_ID'
}, {
header: "Name",
width: 100,
sortable: true,
dataIndex: 'C_NAME'
}, {
header: "Description",
width: 300,
sortable: true,
dataIndex: 'C_DESCRIPTION'
}
],
frame:true,
height:250,
// width:500,
border:false
});
var cat_config_FormPanel = new Ext.FormPanel({
url: '../configureCatogoriesServelet',
labelWidth: 125,
frame: true,
bodyStyle:'padding:5px 5px 0',
defaultType: 'textfield',
items: [
{
fieldLabel: 'Name',
name: 'C_NAME',
allowBlank: false,
maxLength: 256, // for validation
width:190
},{
fieldLabel: 'Description',
name: 'C_DESCRIPTION',
allowBlank: false,
maxLength: 256, // for validation
width:190
}] // items
}); // cat_config_FormPanel
var cat_config_Window = new Ext.Window({
//title: 'Add Category',
width: 400,
height:200,
minWidth: 300,
minHeight: 200,
layout: 'fit',
plain:true,
bodyStyle:'padding:5px;',
buttonAlign:'center',
border: false,
closable:false,
modal:true,
shim: false,
frame: true,
items: cat_config_FormPanel,
buttons: [{
text: 'Submit',
handler: function(){
var form = cat_config_FormPanel.getForm();
if(form.isValid()){
form.submit({
url: '../configureCatogoriesServelet',
waitMsg:'Saving Data...',
params:{
action:categoryAddEditAction,
ID:chosenCategoryIdToEdit
},
success: function(){
cat_config_Window.hide();
cat_config_Store.load();
form.reset();
},
failure: function(){}
});
}else{
Ext.MessageBox.alert('Database Drivers', 'Could not Submit. Make sure all fields are valid.');
}
} // submit handler
},{
text: 'Cancel',
handler: function(){
cat_config_Window.hide();
cat_config_FormPanel.getForm().reset();
} // cancel handler
}]
});
var cat_conf_btn_panel = [{
text: 'Add',
iconCls: 'adddb',
handler: (function(){
cat_config_FormPanel.getForm().reset();
categoryAddEditAction = 'add';
cat_config_Window.setTitle('Add Category');
cat_config_Window.show();
}) // add handler function
},{
text: 'Edit',
iconCls: 'edit',
handler: function(){
var selModel = categoryGridTable.getSelectionModel();
var selRecord;
//updatepassword=true;
if(selModel.getSelected()== undefined){
Ext.MessageBox.alert('Notice','Select Catogry first');
}else{
selRecord = selModel.getSelected();
chosenCategoryIdToEdit = selRecord.get("C_ID");
categoryAddEditAction = "edit";
cat_config_Window.setTitle('Edit Category Configuration');
cat_config_Window.show();
cat_config_Window.hide();
cat_config_FormPanel.getForm().findField("C_NAME").setValue(selRecord.get("C_NAME"));
cat_config_FormPanel.getForm().findField("C_DESCRIPTION").setValue(selRecord.get("C_DESCRIPTION"));
cat_config_FormPanel.getForm().loadRecord(selRecord);
cat_config_Window.show();
}
} // edit handler function
},{
text: 'Delete',
iconCls: 'delete',
handler: function() {
var selModel = categoryGridTable.getSelectionModel();
var selRecord;
if(selModel.getSelected()== undefined){
Ext.MessageBox.alert('Notice','Select category first');
}else{
selRecord = selModel.getSelected();
var recordToDelete = selRecord;
var add_app_Window = new Ext.Window({
//title: 'Add Application',
width: 700,
height:250,
layout: 'fit',
plain:true,
bodyStyle:'padding:5px;',
buttonAlign:'center',
border: false,
closable:false,
modal:true,
shim: false,
frame: true,
items: applicationForm,
buttons: [{
text: 'Submit',
handler: function(){
if( applicationForm.getForm().isValid()){
applicationForm.getForm().submit({
url: '../ApplicationServelet',
waitMsg:'Saving Data...',
params:{
action:schedulerAppAddEditAction,
ID:chosenSchedulerAppIdToEdit
},
success: function(){
add_app_Window.hide();
AppList_Store.load();
applicationForm.getForm().reset();
},
},
fail: function(){
Ext.MessageBox.alert('Email Server', 'Multiple Mail Server is not Allowed.');
},
failure: function(result, request){
var obj = Ext.util.JSON.decode(request.response.responseText);
Ext.MessageBox.alert('Add Application Failed.', obj.reason);
}
});
}else{
Ext.MessageBox.alert('Applications', 'Could not Submit. Make sure all fields are valid.');
}
这是包含所有错误消息的javascript部分，其中包含所有错误消息，如果失败消息我想调用的消息，它表示不允许多个邮件服务器
最佳答案
这不是有效的 HTML 或 Javascript。您需要从开头 <body> 中删除脚本标记并将其放入 <script> 内自己的标签。
out.println ("<html><body><script>alert('Hello World!');</script></body></html>");
但是，您应该避免从 Servlet 打印 HTML，并考虑重定向到 error.jsp反而。这还允许您整理所有验证错误并将其一次性显示给用户。
关于java - Servlet 中的消息警报框，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/17670959/