项目笔记：前后台传值的几种方法-白红宇

项目笔记：前后台传值的几种方法

阅读量：6889 次

发布时间：2019-06-27

本文共 2420 字，大约阅读时间需要 8 分钟。

1、前台传入不是实体类里的值

//修改规则库管理function editControl(){    var selectRows = $("#ruleManagementTable").datagrid('getSelections');    if(selectRows.length > 1){        showMsg("","只能选择一个修改!",false);        return false;    }    if(selectRows.length == 0){        showMsg("","请选择一条规则进行修改!",false);        return false;    }    var selectIndex = $('#ruleManagementTable').datagrid('getRowIndex',selectRows[0]);    showWindow("修改规则库管理","genuineManagementAction_editUI.do?selectIndex="+selectIndex,"500","380",true);}

后台获取，并再传给前台

//修改规则库UI    public String editUI(){
             String selectIndex = getRequest().getParameter("selectIndex");        getRequest().setAttribute("selectIndex", selectIndex);        List
     
       softwares = softwareService.queryAll();        List
      
        softwareList = new ArrayList
       
        ();        if(softwares != null){            for(Software gsnm : softwares){                Software gm = new Software();                gm.setSoftName(gsnm.getSoftName());                gm.setSoftId(gsnm.getSoftId());                softwareList.add(gm);            }        }        getRequest().setAttribute("softwareList", softwareList);        return RETURN_EDITUI;    }

再从前台获取值

var rowSelectIndex = ${selectIndex};

2、前台传入实体类里的值

function editControl(){    var selectRows = $("#ruleManagementTable").datagrid('getSelections');    if(selectRows.length > 1){        showMsg("","只能选择一个修改!",false);        return false;    }    if(selectRows.length == 0){        showMsg("","请选择一条规则进行修改!",false);        return false;    }    var selectIndex = $('#ruleManagementTable').datagrid('getRowIndex',selectRows[0]);    showWindow("修改规则库管理","genuineManagementAction_editUI.do?controlMeasures.id="+selectRows[0].id,"500","380",true);}

后台获取，并再传给前台

//修改规则库UIpublic String editUI(){    if(controlMeasures != null){        controlMeasures = controlMeasuresService.queryById(controlMeasures.getId());    }    List
     
       softwares = softwareService.queryAll();    List
      
        softwareList = new ArrayList
       
        ();    if(softwares != null){        for(Software gsnm : softwares){            Software gm = new Software();            gm.setSoftName(gsnm.getSoftName());            gm.setSoftId(gsnm.getSoftId());            softwareList.add(gm);        }    }    getRequest().setAttribute("softwareList", softwareList);    return RETURN_EDITUI;}

再从前台获取值

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