项目笔记：前后台传值的几种方法

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<Software> softwares = softwareService.queryAll();
        List<Software> softwareList = new ArrayList<Software>();
        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UI
public String editUI(){
    if(controlMeasures != null){
        controlMeasures = controlMeasuresService.queryById(controlMeasures.getId());
    }
    List<Software> softwares = softwareService.queryAll();
    List<Software> softwareList = new ArrayList<Software>();
    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

<!-- ID -->
<input id="id" type="hidden" name="controlMeasures.id" value="<s:property value='controlMeasures.id'/>">

<input type="hidden" id="unGenRightRule" name="controlMeasures.unGenRightRule" value="<s:property value='controlMeasures.unGenRightRule'/>"/>