在前人的基础上更改的DWRProxy

修改的地方:

1.多个DWR同时调用不受限制

2.调用DWR的方法的参数不做限制，可以任意。

3.增加EXT常用的几个Reader的实现:Ext.data.XmlReader Ext.data.JsonReader Ext.data.DWRArrayReader

Js代码

/* @author:Condy @createDate:2008-01-14 Ext.data.DWRProxy(DWR的调用方法,调用方法的输入参数) example: 1.use DWRJsonReader: var store=new Ext.data.Store({ proxy:new Ext.data.DWRProxy(DWRCall.getComboJsonByObject,"condy",{name:'condy',address:'xxxx',age:26}), reader:new Ext.data.DWRJsonReader({ totalProperty: "results", root: "rows", id: "id" },new Ext.data.Record.create([ {name: 'text', mapping: 'name'}, {name: 'value',mapping:'occupation'} ])) }); java code: public String getComboJsonByObject(String param1,DWRObject dwrobject){ System.out.println("param1:"+param1); System.out.println("DWRObject: name:"+dwrobject.getName()+" age:"+dwrobject.getAge()); StringBuffer sb=new StringBuffer(); sb.append("{ 'results': 2, 'rows': ["); sb.append("{ 'id': 1, 'name': 'Bill', occupation: 'Gardener' },"); sb.append("{ 'id': 2, 'name': 'Ben', occupation: 'Horticulturalist' } ]"); sb.append("}"); System.out.println(sb.toString()); return sb.toString(); } 2. use DWRArrayReader: var store=new Ext.data.Store({ proxy:new Ext.data.DWRProxy(DWRCall.getComboArray,"condy"), reader:new Ext.data.DWRArrayReader({ },new Ext.data.Record.create([ {name: 'text', mapping: 0}, {name: 'value',mapping:1} ])) }); java code: public String[][] getComboArray(String id){ System.out.println("id:"+id); String[][] aaData={new String[]{"aaa","111"},new String[]{"bbb","222"}}; return aaData; } 3. use DWRXmlReader: store=new Ext.data.Store({ proxy:new Ext.data.DWRProxy(DWRCall.getComboArray,"condy"), reader:new Ext.data.DWRArrayReader({ },new Ext.data.Record.create([ {name: 'text', mapping: 0}, {name: 'value',mapping:1} ])) }); java code: public String getComboXml(String param1,String param2){ System.out.println("param1:"+param1); System.out.println("param2:"+param2); StringBuffer sbxml=new StringBuffer(); sbxml.append("<?xml version=/"1.0/" encoding=/"GBK/"?>/n"); sbxml.append("<dataset>/n"); sbxml.append("<results>2</results>/n"); sbxml.append("<row>/n"); sbxml.append("<id>1</id>/n"); sbxml.append("<name>Bill</name>/n"); sbxml.append("<occupation>Gardener</occupation>/n"); sbxml.append("</row>/n"); sbxml.append("<row>/n"); sbxml.append("<id>2</id>/n"); sbxml.append("<name>Condy</name>/n"); sbxml.append("<occupation>Horticulturalist</occupation>/n"); sbxml.append("</row>/n"); sbxml.append("</dataset>/n"); System.out.println(sbxml.toString()); return sbxml.toString(); } */ Ext.data.DWRProxy = function(dwrCall){ Ext.data.DWRProxy.superclass.constructor.call(this); this.dwrCall = dwrCall; /** 传入多个输入参数的处理**/ this.callParams = new Array(); for( i=1;i<arguments.length;i++){ this.callParams.push(arguments[i]); } }; Ext.extend(Ext.data.DWRProxy, Ext.data.DataProxy, { load : function(params, reader, callback, scope, arg) { if(this.fireEvent("beforeload", this, params) !== false) { var delegate = this.loadResponse.createDelegate(this, [reader, callback, scope, arg], 1); this.callParams.push(delegate); this.dwrCall.apply(this, this.callParams); } else { callback.call(scope || this, null, arg, false); } }, loadResponse : function(dwrResult, reader, callback, scope, arg) { var result; try { result = reader.read(dwrResult); } catch(e) { this.fireEvent("loadexception", this, null, dwrResult, e); callback.call(scope, null, arg, false); return; } callback.call(scope, result, arg, true); } }); /* * *DWR调用方法返回的格式json *参数调用格式与 Ext.data.JsonReader是一样的 请查看Ext的api文档 */ Ext.data.DWRJsonReader=function(meta,recordType){ Ext.data.DWRJsonReader.superclass.constructor.call(this,meta,recordType); }; Ext.extend(Ext.data.DWRJsonReader,Ext.data.JsonReader,{ read : function(response){ if(typeof response == 'object') alert("object"); var o = eval("("+response+")"); if(!o) { throw {message: "JsonReader.read: Json object not found"}; } if(o.metaData){ delete this.ef; this.meta = o.metaData; this.recordType = Ext.data.Record.create(o.metaData.fields); this.onMetaChange(this.meta, this.recordType, o); } return this.readRecords(o); } }); /* *返回数组格式：[[xxx,yyy],[aaaa],[bbbb]] *参数调用格式与 Ext.data.ArrayReader是一样的，请查看Ext的api文档 */ Ext.data.DWRArrayReader=function(meta,recordType){ Ext.data.DWRArrayReader.superclass.constructor.call(this,meta,recordType); }; Ext.extend(Ext.data.DWRArrayReader,Ext.data.ArrayReader,{ read : function(response){ var o = response; if(!o) { throw {message: "JsonReader.read: Json object not found"}; } if(o.metaData){ delete this.ef; this.meta = o.metaData; this.recordType = Ext.data.Record.create(o.metaData.fields); this.onMetaChange(this.meta, this.recordType, o); } return this.readRecords(o); } }); /* * *DWR调用方法返回的格式XML *参数调用格式与 Ext.data.XmlReader是一样的 请查看Ext的api文档 */ Ext.data.DWRXmlReader=function(meta,recordType){ Ext.data.DWRXmlReader.superclass.constructor.call(this,meta,recordType); }; Ext.extend(Ext.data.DWRXmlReader,Ext.data.XmlReader,{ read : function(response){ var doc; try{ if(Ext.isIE || Ext.isIE7){ doc=new ActiveXObject("Microsoft.XMLDOM"); doc.loadXML(response); }else{ var oParser=new DOMParser(); doc=oParser.parseFromString(response,"text/xml"); } }catch(e){ alert(e); } if(!doc) { throw {message: "DWRXmlReader.read: XML Document not available"}; } return this.readRecords(doc); } });

调用示例：

combo.html 代码

Js代码

<!DOCTYPEhtmlPUBLIC"-//W3C//DTDHTML4.01Transitional//EN""http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
 <metahttp-equiv="Content-Type"content="text/html;charset=GBK">
 <linkrel="stylesheet"type="text/css"href="../js/extjs/resources/css/ext-all.css"/>
 <scripttype='text/javascript'src='/dwr/dwr/interface/DWRCall.js'></script>
 <scripttype='text/javascript'src='/dwr/dwr/engine.js'></script>
 <scripttype="text/javascript"src="../js/extjs/adapter/ext/ext-base.js"></script>
 <scripttype="text/javascript"src="../js/extjs/ext-all-debug.js"></script>
 <scripttype="text/javascript"src="../js/extjs/ext-lang-zh_CN.js"></script>
 <scripttype="text/javascript"src="../js/extjs/DWRProxy.js"></script>
 <scripttype="text/javascript"src="comboxTest.js"></script>
<title>Combo对象学习</title>
 <scripttype="text/javascript">

</script>
</head>
<body>
 <inputtype='button'onclick='alert(Ext.get("local-states").getValue());'value='store.getCount())'>
<div>
 <inputtype='text'id='local-states'></input>
</div>

</body>
</html>

comboxTest.js代码:

Js代码

varstore;
 Ext.onReady(function(){

vardata=[['AL','Alabama'],['AK','Alaska']];

//DWRCall.getComboArray('1',function(data){alert(data[0][1]);});

/*varstore=newExt.data.SimpleStore({

fields:['text','value'],

data:data

});

*/

/**CallcomboxData.jsp***/

/*store=newExt.data.Store({

url:'comboxData.jsp',

reader:newExt.data.XmlReader({

id:'id',

totalRecords:'results',

record:'row'

},[{name:'text',mapping:'name'},{name:'value',mapping:'occupation'}])

});

*/

/*

store=newExt.data.Store({

url:'comboxData.jsp',

reader:newExt.data.JsonReader({

totalProperty:"results",//Thepropertywhichcontainsthetotaldatasetsize(optional)

root:"rows",//ThepropertywhichcontainsanArrayofrowobjects

id:"id"

},newExt.data.Record.create([

{name:'text',mapping:'name'},

{name:'value',mapping:'occupation'}

]))

});

*/

/******callDWR********/

/*

store=newExt.data.Store({

proxy:newExt.data.DWRProxy(DWRCall.getComboJsonByObject,"condy",{name:'condy',address:'xxxx',age:26}),

reader:newExt.data.DWRJsonReader({

totalProperty:"results",

root:"rows",

id:"id"

},newExt.data.Record.create([

{name:'text',mapping:'name'},

{name:'value',mapping:'occupation'}

]))

});

*/

/*

store=newExt.data.Store({

proxy:newExt.data.DWRProxy(DWRCall.getComboArray,"condy"),

reader:newExt.data.DWRArrayReader({

},newExt.data.Record.create([

{name:'text',mapping:0},

{name:'value',mapping:1}

]))

});

*/

store=newExt.data.Store({

proxy:newExt.data.DWRProxy(DWRCall.getComboXml,"condy","test"),

reader:newExt.data.DWRXmlReader({

id:'id',

totalRecords:'results',

record:'row'

},[{name:'text',mapping:'name'},{name:'value',mapping:'occupation'}])

});

varcombo=newExt.form.ComboBox({

store:store,

typeAhead:true,

displayField:'text',

valueField:'value',

mode:'local',

triggerAction:'all',

emptyText:'Selectastate...',

selectOnFocus:true,

applyTo:'local-states'

});

store.load({params:{}});

}

);

java部分代码:

DWRCall.java

Java代码

packagecom.test;

 publicclassDWRCall{

 publicStringgetCombo(Stringid){
 System.out.println("bbbbbbbbbbbbbbbb");
 StringBuffersb=newStringBuffer();
 sb.append("[[").append("'condy','name'],['candy','name']]");
System.out.println(sb.toString());
 returnsb.toString();
}
 publicString[][]getComboArray(Stringid){
 System.out.println("id:"+id);
 String[][]aaData={newString[]{"aaa","111"},newString[]{"bbb","222"}};

 returnaaData;
}
 publicStringgetComboJson(Stringparam1,Stringparam2){
 System.out.println("param1:"+param1);
 System.out.println("param2:"+param2);
 StringBuffersb=newStringBuffer();
 sb.append("{'results':2,'rows':[");
 sb.append("{'id':1,'name':'Bill',occupation:'Gardener'},");
 sb.append("{'id':2,'name':'Ben',occupation:'Horticulturalist'}]");
 sb.append("}");
System.out.println(sb.toString());
 returnsb.toString();
}

 publicStringgetComboXml(Stringparam1,Stringparam2){
 System.out.println("param1:"+param1);
 System.out.println("param2:"+param2);
 StringBuffersbxml=newStringBuffer();
 sbxml.append("<?xmlversion=/"1.0/"encoding=/"GBK/"?>/n");
 sbxml.append("<dataset>/n");
 sbxml.append("<results>2</results>/n");
 sbxml.append("<row>/n");
 sbxml.append("<id>1</id>/n");
 sbxml.append("<name>Bill</name>/n");
 sbxml.append("<occupation>Gardener</occupation>/n");
 sbxml.append("</row>/n");
 sbxml.append("<row>/n");
 sbxml.append("<id>2</id>/n");
 sbxml.append("<name>Condy</name>/n");
 sbxml.append("<occupation>Horticulturalist</occupation>/n");
 sbxml.append("</row>/n");
 sbxml.append("</dataset>/n");
System.out.println(sbxml.toString());
 returnsbxml.toString();
}

 publicStringgetComboJsonByObject(Stringparam1,DWRObjectdwrobject){
 System.out.println("param1:"+param1);
 System.out.println("DWRObject:name:"+dwrobject.getName()+"age:"+dwrobject.getAge());
 StringBuffersb=newStringBuffer();
 sb.append("{'results':2,'rows':[");
 sb.append("{'id':1,'name':'Bill',occupation:'Gardener'},");
 sb.append("{'id':2,'name':'Ben',occupation:'Horticulturalist'}]");
 sb.append("}");
System.out.println(sb.toString());
 returnsb.toString();
}
}

package com.test; public class DWRCall { public String getCombo(String id){ System.out.println("bbbbbbbbbbbbbbbb"); StringBuffer sb=new StringBuffer(); sb.append("[[").append("'condy','name'],['candy','name']]"); System.out.println(sb.toString()); return sb.toString(); } public String[][] getComboArray(String id){ System.out.println("id:"+id); String[][] aaData={new String[]{"aaa","111"},new String[]{"bbb","222"}}; return aaData; } public String getComboJson(String param1,String param2){ System.out.println("param1:"+param1); System.out.println("param2:"+param2); StringBuffer sb=new StringBuffer(); sb.append("{ 'results': 2, 'rows': ["); sb.append("{ 'id': 1, 'name': 'Bill', occupation: 'Gardener' },"); sb.append("{ 'id': 2, 'name': 'Ben', occupation: 'Horticulturalist' } ]"); sb.append("}"); System.out.println(sb.toString()); return sb.toString(); } public String getComboXml(String param1,String param2){ System.out.println("param1:"+param1); System.out.println("param2:"+param2); StringBuffer sbxml=new StringBuffer(); sbxml.append("<?xml version=/"1.0/" encoding=/"GBK/"?>/n"); sbxml.append("<dataset>/n"); sbxml.append("<results>2</results>/n"); sbxml.append("<row>/n"); sbxml.append("<id>1</id>/n"); sbxml.append("<name>Bill</name>/n"); sbxml.append("<occupation>Gardener</occupation>/n"); sbxml.append("</row>/n"); sbxml.append("<row>/n"); sbxml.append("<id>2</id>/n"); sbxml.append("<name>Condy</name>/n"); sbxml.append("<occupation>Horticulturalist</occupation>/n"); sbxml.append("</row>/n"); sbxml.append("</dataset>/n"); System.out.println(sbxml.toString()); return sbxml.toString(); } public String getComboJsonByObject(String param1,DWRObject dwrobject){ System.out.println("param1:"+param1); System.out.println("DWRObject: name:"+dwrobject.getName()+" age:"+dwrobject.getAge()); StringBuffer sb=new StringBuffer(); sb.append("{ 'results': 2, 'rows': ["); sb.append("{ 'id': 1, 'name': 'Bill', occupation: 'Gardener' },"); sb.append("{ 'id': 2, 'name': 'Ben', occupation: 'Horticulturalist' } ]"); sb.append("}"); System.out.println(sb.toString()); return sb.toString(); } }

DWRObject.java

packagecom.test;

 publicclassDWRObject{

 privateStringname;
 privateStringaddress;
 privateintage;
 /**
*@returntheaddress
*/
 publicStringgetAddress(){
 returnaddress;
}
 /**
*@paramaddresstheaddresstoset
*/
 publicvoidsetAddress(Stringaddress){
 this.address=address;
}
 /**
*@returntheage
*/
 publicintgetAge(){
 returnage;
}
 /**
*@paramagetheagetoset
*/
 publicvoidsetAge(intage){
 this.age=age;
}
 /**
*@returnthename
*/
 publicStringgetName(){
 returnname;
}
 /**
*@paramnamethenametoset
*/
 publicvoidsetName(Stringname){
 this.name=name;
}

}