extjs实现选择多表自定义查询功能————前台部分(ext源码)

主要使用的技术：

1、extjs2.0，整体框架

2、RemoteCheckboxGroup.js ，用于动态生成表字段（供查询结果使用）

3、Ext.ux.grid.RowActions.js，用于grid行扩展（上移下移删除等）

4、Datetime.js，用于时间选择

5、MetaGrid.js 用于动态生成查询结果列表（返回结果Grid）

6、ehcache 用于缓存自定表数据，比如表名称、字段描述、长度等固定信息

7、jxl.jar 用于查询结果输出，最后生成Excel文件

8、Java

 

EditGridPanel主要代码如下：

  1      {header:'括号',dataIndex:'leftbrackets',40,editor:new Ext.grid.GridEditor(new Ext.form.ComboBox({
  2                     store: new Ext.data.SimpleStore({
  3                         fields:['value','text'],
  4                         data: leftBracketsComboData
  5                     }),
  6                     mode: 'local',
  7                     triggerAction: 'all',
  8                     editable:false,
  9                     valueField: 'value',
 10                     displayField: 'text',
 11                     readOnly:true
 12 //                    lazyInit:false,
 13 //                    listeners: {
 14 //                        'focus' : 
 15 //                              function(){  
 16 //                                this.expand();  
 17 //                               }  
 18 //                      }
 19                 })),
 20                 renderer: function(value, cellmeta, record){
 21                     if(value == null || value == ""){
 22                         return "";
 23                     }
 24                     return leftBracketsComboData[value][1];
 25                 },scope:this}
 26             ,{header:'表名称',dataIndex:'tablename',80,editor:new Ext.grid.GridEditor(new Ext.form.ComboBox({
 27                     store: new Ext.data.SimpleStore({
 28                         fields:['value','text'],
 29                         data: baseTableData
 30                     }),
 31                     id:'baseTableNameID',
 32                     tpl: '<tpl for="."><div ext:qtip="{text}" class="x-combo-list-item">{text}</div></tpl>',
 33                     mode: 'local',
 34                     triggerAction: 'all',
 35                       editable:false,
 36                     valueField: 'value',
 37                     displayField: 'text',
 38                     lazyInit:false,
 39                     listeners: {
 40                          'expand':function(combo){
 41                                   combo.clearValue();
 42                                   combo.store.loadData(baseTableData);
 43                           }
 44                           ,'select':function(){
 45                                   
 46                           }
 47                          ,'focus' :function(){  
 48                                 this.expand();  
 49                            }  
 50                       }
 51                 })),
 52                 renderer: function(value, cellmeta, record, row, col, store){
 53                        if(value == null || value == ""){
 54                         return;
 55                     } 
 56                     return record.get("tablenamestring");
 57                 }}
 58             ,{header:'查询条件列',dataIndex:'fieldname',90,editor:new Ext.grid.GridEditor(new Ext.form.ComboBox({
 59                     id:'fieldnameID'
 60                       ,store : new Ext.data.Store({
 61                                 proxy : new Ext.data.HttpProxy({url : '../SearchTableColumns/extlistKV.do'})
 62                                 ,reader : new Ext.data.JsonReader({}, ['name','chinese'])
 63                                 ,baseParams:{s_tablename:'0'}
 64                                 })   
 65                             ,tpl: '<tpl for="."><div ext:qtip="{chinese}" class="x-combo-list-item">{chinese}</div></tpl>'
 66                             ,valueField :'name'
 67                             ,displayField :'chinese'
 68                             ,mode : 'remote'
 69                             ,forceSelection : true
 70                             ,triggerAction : 'all'
 71                             ,typeAhead : false
 72                             ,selectOnFocus : true
 73                             ,resizable:true
 74                             ,width : 120
 75                             ,lazyInit:false
 76                             ,listeners: {
 77                                   'focus' : 
 78                                       function(){  
 79                                         this.expand();  
 80                                        }
 81                               }
 82                     }
 83                 )),
 84                 renderer: function(value, cellmeta, record, row, col, store){
 85                     if(value == null || value == ""){
 86                         return "";
 87                     }
 88                     return record.get("fieldnamestring");
 89                 }}
 90             ,{header:'逻辑运算符',dataIndex:'relationsign',70,editor:new Ext.grid.GridEditor(new Ext.form.ComboBox({
 91                     store: new Ext.data.SimpleStore({
 92                         fields:['value','text'],
 93                         data: relationSignComboData
 94                     }),
 95                     mode: 'local',
 96                     triggerAction: 'all',
 97                     editable:false,
 98                     valueField: 'value',
 99                     displayField: 'text',
100                     readOnly:true,
101                     lazyInit:false,
102                     listeners: {
103                          'focus' : 
104                               function(){  
105                                 this.expand();  
106                                }  
107                       }
108                 })),
109                 renderer: function(value, cellmeta, record, row, col, store){
110                     if(value == null || value == ""){
111                         return;
112                     }
113                     return relationSignComboData[value][1];
114                 },scope:this}
115             ,{header:'查询条件值',dataIndex:'expressvalue',125,editor:new Ext.grid.GridEditor(new Ext.form.TextField({       }))
116                , renderer: function(value, cellmeta, record, row, col, store){
117                     if(value == null || value == ""){
118                         return "";
119                     }
120                     return record.get("expressvaluestring");
121                 }
122                 }
123                 ,{header:'括号',dataIndex:'rightbrackets',40,editor:new Ext.grid.GridEditor(new Ext.form.ComboBox({
124                     store: new Ext.data.SimpleStore({
125                         fields:['value','text'],
126                         data: rightBracketsComboData
127                     }),
128                     mode: 'local',
129                     triggerAction: 'all',
130                     editable:false,
131                     valueField: 'value',
132                     displayField: 'text',
133                     readOnly:true,
134                     lazyInit:false,
135                     listeners: {
136                          'focus' : 
137                               function(){  
138                                 this.expand();  
139                                }  
140                       }
141                 })),
142                 renderer: function(value, cellmeta, record){
143                     if(value == null || value == ""){
144                         return "";
145                     }
146                     return rightBracketsComboData[value][1];
147                 },scope:this}
148                ,{header:'关系运算符',dataIndex:'operatorsign',70,editor:new Ext.grid.GridEditor(new Ext.form.ComboBox({
149                     store: new Ext.data.SimpleStore({
150                         fields:['value','text'],
151                         data: operatorSignComboData
152                     }),
153                     mode: 'local',
154                     triggerAction: 'all',
155                     editable:false,
156                     valueField: 'value',
157                     displayField: 'text',
158                     readOnly:true,
159                     lazyInit:false,
160                     listeners: {
161                          'focus' : 
162                               function(){  
163                                 this.expand();  
164                                }  
165                       }
166                 })),
167                 renderer: function(value, cellmeta, record){
168                     if(value == null || value == ""){
169                         return ;
170                     }
171                     return operatorSignComboData[value][1];
172                 },scope:this}
173                 ,this.rowActions
174                
175         ]);

 

 1 Ext.namespace('com.awd');
 2 Ext.namespace('com.awd.advancedSearch');
 3 
 4 com.awd.advancedSearch.tableGroup = Ext.extend(Ext.form.FormPanel, {
 5     initComponent : function() {
 6         Ext.apply(this, {
 7             border : true,
 8             buttonAlign:'right',
 9             bodyStyle : 'padding:5px;overflow-y:scroll;border-left:1px solid #8DB2E3'
10         });
11         com.awd.advancedSearch.tableGroup.superclass.initComponent.apply(this,arguments);
12     }
13     ,loadTableField:function(selectedTableColumns){
14            Ext.Ajax.request({
15                     url : '../AdvancedSearch/getDisplayTables.do',
16                     method:'post',
17                     params:{tableNames:baseTableData.toString()},
18                     success : function(request) {
19                         var tables = Ext.decode(request.responseText);
20                         var myfieldset = null;
21                         if (this.items.length == 0) {
22                             for (var i = 0; i < tables.length; i++) {
23                                 myfieldset = new Ext.form.FieldSet({
24                                     title : tables[i].tableString
25                                     ,collapsible : true
26                                     ,autoHeight : true
27                                     ,layout : 'column'
28                                     ,items : [
29                                        {xtype : 'remotecheckboxgroup',
30                                         columns : 5,
31                                         url : '../SearchTableColumns/extListAsFieldDisplay.do',
32                                         baseParams : {
33                                             dir : 'ASC',
34                                             limit : '150',
35                                             s_tablename : tables[i].tableName,
36                                             selectedTableColumns:selectedTableColumns
37                                         },
38                                         reader : new Ext.data.JsonReader({
39                                                     totalProperty : 'totalProperty',
40                                                     root : 'list',
41                                                     fields : [{name : 'fieldId'},{name : 'fieldName'},{name : 'fieldLabel'},{name : 'fieldValue'},{name : 'fieldChecked'}]
42                                                 }),
43                                         fieldId : 'fieldId',
44                                         fieldName : 'fieldName',
45                                         fieldLabel : 'fieldLabel',
46                                         fieldValue : 'fieldValue',
47                                         fieldChecked : 'fieldChecked'
48                                     }]
49                                 });
50                                 this.items.add(myfieldset);
51                             }
52                         }else{
53                             for (var j = 0; j < tables.length; j++) {
54                                 this.remove(0);  
55                             }
56                             for (var i = 0; i < tables.length; i++) {
57                                 myfieldset = new Ext.form.FieldSet({
58                                     title : tables[i].tableString
59                                     ,collapsible : true
60                                     ,autoHeight : true
61                                     ,layout : 'column'
62                                     ,items : [
63                                        {xtype : 'remotecheckboxgroup',
64                                         columns : 5,
65                                         url : '../SearchTableColumns/extListAsFieldDisplay.do',
66                                         baseParams : {
67                                             dir : 'ASC',
68                                             limit : '150',
69                                             s_tablename : tables[i].tableName,
70                                             selectedTableColumns:selectedTableColumns
71                                         },
72                                         reader : new Ext.data.JsonReader({
73                                                     totalProperty : 'totalProperty',
74                                                     root : 'list',
75                                                     fields : [{name : 'fieldId'},{name : 'fieldName'},{name : 'fieldLabel'},{name : 'fieldValue'},{name : 'fieldChecked'}]
76                                                 }),
77                                         fieldId : 'fieldId',
78                                         fieldName : 'fieldName',
79                                         fieldLabel : 'fieldLabel',
80                                         fieldValue : 'fieldValue',
81                                         fieldChecked : 'fieldChecked'
82                                     }]
83                                 });
84                                 this.items.add(myfieldset);  
85                             }
86                         }
87                         this.doLayout(true);
88                     }
89                     ,scope : this
90                     ,failure : function() {
91                         alert('加载错误，请确认网络连接正常！');
92                     }
93                 });    
94         }
95 });
96

 

  1 Ext.apply(Ext, {
  2     isFirebug: (window.console && window.console.firebug)
  3 });
  4 
  5 Ext.ns('app');
  6 
  7 app.getMetaGrid = function(config){
  8 
  9     return new Ext.ux.grid.MetaGrid(Ext.apply({
 10         baseParams: null,
 11         /**
 12 
 13          * @cfg {String} url Specify the url to the data object (server side
 14 
 15          * script) from which to load data through the HttpProxy.
 16 
 17          */
 18 
 19         url: '../AdvancedSearch/extSearchResultList.do?ssid='+globalQueryString("ssid"), 
 20 //        url: 'meta-data.js',
 21 
 22         renderChange: function(val){
 23             if (val > 0) {
 24                 return '<span style="color:green;">' + val + '</span>';
 25             } else if (val < 0) {
 26                 return '<span style="color:red;">' + val + '</span>';
 27             }
 28             return val;
 29         },
 30         renderCombo: function(val, metadata, record, rowIndex, colIndex, store){
 31             var data;
 32             /*
 33 
 34              // the field name:
 35 
 36              //var field = record.fields.items[colIndex].name; // unreliable since colIndex may be wrong
 37 
 38              var field = this.colModel.getDataIndex(colIndex);
 39 
 40              
 41 
 42              // Use the Store Manager to get a reference to the ComboBox store.
 43 
 44              // The store that is passed as one of arguments to this renderer
 45 
 46              // function is the grid store.  We need to cross reference the data
 47 
 48              // with the ComboBox store, not the grid store.
 49 
 50              //Get a registered Store using the id of the Store
 51 
 52              var storeId = field;
 53 
 54              var comboStore = Ext.StoreMgr.lookup(storeId);
 55 
 56              
 57 
 58              if (!comboStore) {
 59 
 60              comboStore = new App.ComboStore(storeId);
 61 
 62              }
 63 
 64              var comboRecord = comboStore.getById(val);
 65 
 66              if (comboRecord) {
 67 
 68              data = comboRecord.data.displayField;
 69 
 70              }
 71 
 72              else {
 73 
 74              data = data;//'missing data';
 75 
 76              }
 77 
 78              */
 79 
 80             // return the value that should be rendered into the grid cell
 81             return data;
 82         },
 83 
 84         /** 
 85 
 86          * Date renderer function
 87 
 88          * Renders a date
 89 
 90          */
 91         renderDate: function(date){
 92             return date ? date.dateFormat('M d, Y') : '';
 93         },
 94         renderDateTime: function(date){
 95             if (!date) {
 96                 return '';
 97             }
 98 
 99             var now = new Date();
100             var d = now.clearTime(true);
101             var notime = date.clearTime(true).getTime();
102             if (notime == d.getTime()) {
103                 return 'Today ' + date.dateFormat('g:i a');
104             }
105 
106             d = d.add('d', -6);
107 
108             if (d.getTime() <= notime) {
109                 return date.dateFormat('D g:i a');
110             }
111             return date.dateFormat('n/j g:i a');
112         },
113 
114         /** 
115 
116          * Italic Custom renderer function
117 
118          * takes val and renders it in italics
119 
120          * @param {Object} val
121 
122          */
123 
124         renderItalic: function(data, metadata, record, rowIndex, columnIndex, store){
125             return '<i>' + data + '</i>';
126         },
127 
128         /** 
129 
130          * Percent Custom renderer function
131 
132          * takes 'data' and renders it red or green with %
133 
134          */
135 
136         renderPctChange: function(data, metadata, record, rowIndex, columnIndex, store){
137 
138             var p = (parseFloat(data) * 100.0).toFixed(1);
139             var qtip = '>';
140             if (data >= 0) {
141                 //meta.css = 'green-cls';
142                 qtip = " qtip='yeah'/>";
143                 return '<span style="color:green;"' + qtip + data + '%</span>';
144             } else if (data < 0) {
145                 //meta.css = 'red-cls';
146                 qtip = " qtip='woops'/>";
147                 return '<span style="color:red;"' + qtip + data + '%</span>';
148             }
149             //css:
150 
151             //.red-cls {color: red;}
152 
153             //.green-cls {color: green;}
154 
155             return data;
156         },
157 
158         /** 
159 
160          * Red/Green Custom renderer function
161 
162          * takes val and renders it red if <0 otherwise renders it green
163 
164          * @param {Object} val
165 
166          */
167 
168         renderPosNeg: function(data, metadata, record, rowIndex, columnIndex, store){
169             if (data >= 0) {
170                 return '<span style="color:green;">' + data + '</span>';
171             } else if (data < 0) {
172                 return '<span style="color:red;">' + data + '</span>';
173             }
174             return data;
175         },
176 
177         /** 
178 
179          * Risk Custom renderer function
180 
181          * Renders according to risk level
182 
183          * @param {Object} val
184 
185          */
186 
187         renderRisk: function(data, metadata, record, rowIndex, columnIndex, store){
188             switch (data) {
189                 case "high":
190                     metadata.css = "redcell";
191                     return "high";//display 'high' in the cell (could be
192                 //we could display anything here
193 
194                 //"High","Hi","yup"...anything
195                 case "medium":
196                     return "medium";
197                 case "low":
198                     return "low";
199                 default:
200                     return data;
201             }
202 
203         },
204         /** 
205 
206          * Star Custom renderer function
207 
208          * Renders a picture according to value
209 
210          * @param {Object} val
211 
212          */
213         renderStars: function(data, metadata, record, rowIndex, columnIndex, store){
214             switch (data) {
215                 case "1":
216                     metadata.css = "stars1";
217                     return 1;//returns text over the background image
218                 case "2":
219                     metadata.css = "stars2";
220                     return;//just shows the background image
221                 case "3":
222                     metadata.css = "stars3";
223                     return;
224                 case "4":
225                     metadata.css = "stars4";
226                     return;
227                 case "5":
228                     metadata.css = "stars5";
229                     return;
230                 default:
231                     return data;
232             }
233         }
234         ,renderQtip: function(data, metadata, record, rowIndex, columnIndex, store){
235             metadata.attr = 'ext:qtip="' + data + '"';
236             return data;
237         }
238 
239     }, config));
240 };
241 
242 Ext.onReady(function(){
243     var vp = new Ext.Viewport({
244             layout:'fit',
245             items: [app.getMetaGrid({
246             border: false
247         })]
248     });
249 });

所有JS打包下载共享 /Files/yimu/advancedSearch.7z

一切尽在代码中