/// <summary>
/// 读取
/// </summary>
/// <returns></returns>
public object Read(string file)
{
if (!File.Exists(file))
{
return(Activator.CreateInstance(type));
}
using (FileStream fs = new FileStream(file, FileMode.Open, FileAccess.Read))
{
byte[] data = new byte[fs.Length];
fs.Read(data, 0, data.Length);
string json = Encoding.UTF8.GetString(data);
try
{
return(I3JsonConvert.FromJson(json, type));
}
catch
{
return(Activator.CreateInstance(type));
}
}
}
/// <summary>
/// 转换为图片单元格，复制所有属性（目的是为了在ReportData经过json转换后，找回Cell中丢失的单元格类型信息，要求I3ReportImageCell代码中的属性，全部写在I3ReportCell中）
/// </summary>
/// <param name="row"></param>
/// <param name="col"></param>
/// <returns></returns>
public I3ReportImageCell ConvertToImageItem(int row, int col)
{
I3ReportCell old = GetCellItem(row, col);
if (old != null && old is I3ReportImageCell)
{
return(old as I3ReportImageCell);
}
I3ReportImageCell item = null;
if (old == null)
{
item = new I3ReportImageCell(row, col);
}
else
{
string json = I3JsonConvert.ToJson(old);
item = (I3ReportImageCell)I3JsonConvert.FromJson(json, typeof(I3ReportImageCell));
}
this[row][col] = item;
return(item);
}
/// <summary>
/// 构建参数 构建失败会抛出异常
/// </summary>
/// <param name="request"></param>
/// <returns></returns>
protected virtual object[] CreateParameters(HttpRequest request, MethodInfo method)
{
object[] ps = null;
try
{
ParameterInfo[] parameters = method.GetParameters();
if (parameters.Length > 0)
{
MethodParameterTypeAttribute[] attrs = method.GetCustomAttributes(typeof(MethodParameterTypeAttribute), true) as MethodParameterTypeAttribute[];
ps = new object[parameters.Length];
int i = 0;
foreach (ParameterInfo parameter in parameters)//遍历方法的参数
{
string val = request[parameter.Name];
val = HttpUtility.UrlDecode(val, Encoding.UTF8);
if (!string.IsNullOrEmpty(val))//参数值不能为空
{
//非最终类处理
MethodParameterTypeAttribute pta = null;
foreach (MethodParameterTypeAttribute attr in attrs)//查找此参数对应的MethodParameterTypeAttribute
{
if (attr.ParameterName == parameter.Name)
{
pta = attr;
break;
}
}
if (pta != null)
{
IMethodParameterTypeCreator provider = Activator.CreateInstance(pta.CreatorType) as IMethodParameterTypeCreator;
foreach (ParameterInfo p in parameters)//查找关联参数
{
if (p.Name == pta.RelParameterName)
{
string relVal = request[pta.RelParameterName];
//获取关联参数
object data = string.IsNullOrEmpty(relVal) ? null : I3JsonConvert.FromJson(relVal, p.ParameterType);
//根据本参数的值和关联参数对象 生成本参数的对象
ps[i] = I3JsonConvert.FromJson(val, provider.GetParameterType(data));
break;
}
}
}
else
{
if (parameter.ParameterType == typeof(string))
{
if (val.StartsWith("\"") && val.EndsWith("\""))
{
//参数为string类型时，参数值两端可加双引号，也可不加（标准json是需要加的）
try
{
ps[i] = I3JsonConvert.FromJson(val, parameter.ParameterType);
}
catch
{
ps[i] = val;
}
}
else
{
ps[i] = val;
}
}
else
{
if (parameter.ParameterType == typeof(bool))
{
val = val == null ? null : val.ToLower();
}
ps[i] = I3JsonConvert.FromJson(val, parameter.ParameterType);
}
}
}
i++;
}
}
}
catch (Exception ex)
{
throw new JsonServiceException("参数获取失败！", ex);
}
return(ps);
}