ext ajax与struts传json对象 范例

ext ajax与struts传json对象 实例

ext ajax json与struts实例?

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? ? ext的javascript代码：

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//提交修改function submitUpdate(grid,colIndex,rowIndex,id){//后台semanticsBeanvar sentence = Ext.getCmp('updateSentence').getValue();var template = Ext.getCmp('updateTemplatesql').getValue();var tableids = Ext.getCmp('updateTableids').getValue();var jsonBean = {'bean.id' : id,'bean.sentence' : sentence,'bean.template' : template,'bean.tableids' : tableids}var bean = {id:id,sentence:sentence,template:template,tableids:tableids};Ext.Ajax.request({url:'./modifySemantics',params:jsonBean,success:function(r,o){reRenderTable(grid,colIndex,rowIndex,bean);},failure:function(){Ext.Msg.alert("更新有误","更新有误,当前数据过旧，请刷新重试");}});}

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struts配置文件：

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<!-- 更新语义库记录 --><action name="modifySemantics" method="updateSemanticsList"></action>

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strut java代码：

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? ?类中属性

 // 前台传输实体beanprivate SemanticsSqlTemp bean = new SemanticsSqlTemp();

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public String updateSemanticsList(){try{if(this.bean == null || this.bean.getId() == 0){logger.error("更新语义库sql模板报错,传输数据缺少ID");return Action.NONE;}ArrayList<Object> keyvalueList = new ArrayList<Object>();ArrayList<Class<?>> classtypeList = new ArrayList<Class<?>>();bean.setUpdateData(keyvalueList, classtypeList);String sql = "update sql_template_set set sentence = ?,templatesql = ?,tableids = ? where id = ?";NLSqlAnalysis.updateByID(sql, bean, keyvalueList, classtypeList);return Action.NONE;}catch (Exception e) {logger.error("更新语义库sql模板报错",e);return Action.ERROR;}}

?这样就可以让struts接收json对象

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再附上一个解析传回的json对象代码

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function showSemanticsList(type,renderDivID){//var showradio = Ext.getCmp("showRadioGroup"); //var showtype = getRadioInputValue(showradio);//获取数据标志Ext.Ajax.request({url:'./showSemantics',params:{showType:type},success : function(r,o){var re = Ext.decode(r.responseText);if(re.length>0)showSemanticsData(type,re,renderDivID);//TODO:else{document.getElementById(renderDivID).innerHTML = "";Ext.Msg.alert("无所选数据");}},failure : function(){Ext.Msg.alert("语义库查询有误","语义库查询有误");}});}

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?在js中解析json对象：

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function showItem(grid,colIndex,rowIndex){var id = rowIndex.data.id;Ext.Ajax.request({url:'./getSemantics',params:{id:id},success:function(r,o){var re = Ext.decode(r.responseText);showItemEditPage(2,grid,colIndex,rowIndex,re);},failure:function(){Ext.Msg.alert("语义查询有误","语义查询有误");}});}

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