内存泄漏使用的StreamReader和XmlSerializer的 [英] Memory Leak using StreamReader and XmlSerializer

问题描述

我一直在使用Google在过去的几个小时，并尝试不同的东西，但似乎无法这样....

I've been googling for the past few hours and trying different things but can't seem to the bottom of this....

当我运行这个底部代码中，内存使用持续增长。

When I run this code, the memory usage continuously grows.

while (true)
{
    try
    {
        foreach (string sym in stringlist)
        {
            StreamReader r = new StreamReader(@"C:\Program Files\" + sym + ".xml");
            XmlSerializer xml = new XmlSerializer(typeof(XMLObj), new XmlRootAttribute("rootNode"));
            XMLObj obj = (XMLObj)xml.Deserialize(r);                       
            obj.Dispose();
            r.Dispose();
            r.Close();
        }
    }    
    catch(Exception ex) 
    {
        Console.WriteLine(ex.ToString()); 
    }
    Thread.Sleep(1000);
    Console.Clear();
}

XMLObj是一个自定义对象

XMLObj is a custom object

[Serializable()]
public class XMLObj: IDisposable
{
    [XmlElement("block")]
    public List<XMLnode> nodes{ get; set; }

    public XMLObj() { }

    public void Dispose()
    {
        nodes.ForEach(n => n.Dispose());
        nodes= null;

        GC.SuppressFinalize(this);
    }
}

我已经尝试添加在GC.Collect的（） ; 。但是这似乎并没有做任何事情。

I've tried adding in GC.Collect(); but that doesn't seem to do anything.

推荐答案

泄漏是在这里：

new XmlSerializer(typeof(XMLObj), new XmlRootAttribute("rootNode"))

的XmlSerializer 使用装配生成，无法收集组件。它确实为的简单的构造情况下（新的XmlSerializer（类型），等），但不可以此方案。因此，您应该手动缓存它：

XmlSerializer uses assembly generation, and assemblies cannot be collected. It does some automatic cache/reuse for the simplest constructor scenarios (new XmlSerializer(Type), etc), but not for this scenario. Consequently, you should cache it manually:

static readonly XmlSerializer mySerializer =
    new XmlSerializer(typeof(XMLObj), new XmlRootAttribute("rootNode"))

和使用缓存的序列化实例。

and use the cached serializer instance.

这篇关于内存泄漏使用的StreamReader和XmlSerializer的的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！