blocks|key|1905535|text|已经有一个变量定义的serverURL可用于此方法(除了您正在接受的形参之外)。这就是所谓的“影子”。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1905536|我认为大多数Java程序员都忽略了这个检查，因为它实际上并不那么令人困惑。|1905537|例如，这将触发错误：|1905538|public+class+Foo+{
++private+int+bar+=+0;

++public+void+someMethod(int+bar)+{
++++//+There+are+two+bars!++All+references+in+this+method+will+use+the+parameter+bar,
++++//+unless+they+are+explicitly+prefixed+with+'this'.
++++this.bar+=+bar;
++}
}|code-block|syntax|javascript|1905539|entityMap^0|A|9|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|T|8|@]|D|@]|E|$]]|$1|H|3|I|5|6|7|U|8|@]|D|@]|E|$]]|$1|J|3|K|5|L|7|V|8|@]|D|@]|E|$M|N]]|$1|O|3|-4|5|6|7|W|8|@]|D|@]|E|$]]]|P|$]]

There is already a variable defined <code>serverURL</code> which is available to this method (additional to the formal parameter you are accepting). This is called "shadowing".

I think most Java programmers turn this check off, because it's not really that confusing.

For example, this would trigger the error:

<pre><code>public class Foo {
 private int bar = 0;

 public void someMethod(int bar) {
 // There are two bars! All references in this method will use the parameter bar,
 // unless they are explicitly prefixed with 'this'.
 this.bar = bar;
 }
}
</code></pre>

blocks|key|1905645|text|我认为在构造函数和setter中，set字段名称与setter参数名称相同是很常见的。这就是我推荐这种配置的原因：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1905646|<module+name="HiddenField"+>
++++<property+name="ignoreSetter"+value="true"+/>
++++<property+name="ignoreConstructorParameter"+value="true"+/>
</module>|code-block|syntax|javascript|1905647|这样，其他隐藏字段的情况仍然是被禁止的。|1905648|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

I think it is very common in constructors and setters that the set field name is the same as the setter parameter name. This is why i recommend this configuration:

<pre><code>&lt;module name="HiddenField" &gt;
 &lt;property name="ignoreSetter" value="true" /&gt;
 &lt;property name="ignoreConstructorParameter" value="true" /&gt;
&lt;/module&gt;
</code></pre>

This way the other hidden field cases are still forbidden.

blocks|key|1905571|text|参数和静态字段具有相同的名称。只需重命名其中一个即可。有些人遵循以p作为所有参数前缀的命名约定。然后，您将使用serverURL作为字段名，将pServerURL作为参数名。或者，您可以简单地关闭检查。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1905572|entityMap^0|X|1|1J|9|1Z|A|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]|$9|M|A|N|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|O|8|@]|D|@]|E|$]]]|G|$]]

The parameter and the static field have the same name. Just rename one of them.
Some people follow a naming convention that prefixes all parameters with <code>p</code>. Then you would have <code>serverURL</code> as field name and <code>pServerURL</code> as parameter name.
Or you could simply turn off the check.

blocks|key|4016073|text|我通过在eclipse中禁用它来解决它。当我登录到这个页面时，我一直在寻找如何做到这一点。我没有在谷歌十大查询中找到答案，所以我不得不艰难地找出答案。对于正在寻找它的人来说，以下是我是如何做到的：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4016074|打开|4016075|Eclipse>Preferences>Checkstyle|4016076|找到您正在使用的checkstyle配置(您可能已经设置了该配置，或者您正在使用默认配置，在这种情况下，最好创建一个您自己的副本，然后对其进行编辑)。选择它，然后单击右侧的configure按钮。在列表中找到以下配置：|4016077|编码Problems>Hidden字段|4016078|打开配置(UI中有一个名为“打开”的按钮)。|4016079|取消选择“参数声明”。单击OK，然后单击OK，然后单击OK。|4016080|entityMap^0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|S|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|T|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|U|8|@]|9|@]|A|$]]|$1|L|3|M|5|6|7|V|8|@]|9|@]|A|$]]|$1|N|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|O|$]]

I resolved it by disabling it in eclipse. I was looking for how to do that when I landed on this page. I didn't find the answer in top 10 google query so I had to figure it out the hard way. For someone who is looking for that, here is how I did it:

Open

Eclipse>Preferences>Checkstyle

Find the checkstyle configuration you are using (you might have set that or your are using default in which case its a better idea to create a copy of your own and then edit that). Select that and then click the configure button on the right side. Find the following config in the list:

Coding Problems>Hidden Field

Open the configuration (there is button called 'open' in the UI).

Unselect 'Parameter Declaration'. Click OK then Click OK and then Click OK.

blocks|key|1570518|text|只需在ur方法中更改您的参数名称|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1570519|private+static+void+setServerURL(final+String+serverURL)+{
Utility.serverURL+=+serverURL;
}|code-block|syntax|javascript|1570520|至|1570521|private+static+void+setServerURL(final+String+serverURLXYZ)+{
Utility.serverURL+=+serverURLXYZ;
}|1570522|享受吧..。|1570523|Jigar+Patel|1570524|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|U|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|V|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

Just change ur param name in ur method

<pre><code>private static void setServerURL(final String serverURL) {
Utility.serverURL = serverURL;
}
</code></pre>

to 

<pre><code>private static void setServerURL(final String serverURLXYZ) {
Utility.serverURL = serverURLXYZ;
}
</code></pre>

Enjoy...

Jigar Patel

blocks|key|1570535|text|有点愚蠢的错误，但下面是我放在setter中的简单修复方法：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1570536|是：|1570537|public+void+setName(String+name)+{
++this.name+=+name;
}|code-block|syntax|javascript|1570538|更新：|1570539|public+void+setName(String+val)+{
++this.name+=+val;
}|1570540|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Q|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

Kinda dumb error, but here is the easy fix I put in my setters to fix it:

was:

<pre><code>public void setName(String name) {
 this.name = name;
}
</code></pre>

updated:

<pre><code>public void setName(String val) {
 this.name = val;
}
</code></pre>

I am getting this checkstyle error:

<pre><code>'serverURL' hides a field
</code></pre>

in this 

<pre><code> private static void setServerURL(final String serverURL) {
 Utility.serverURL = serverURL;
 }
</code></pre>

What could be the reason, and how to resolve it?

Checkstyle: How to Resolve "Hidden Field" Error

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我得到了这个checkstyle错误：'serverURL' hides a field在这里 private static void setServerURL(final String serverURL) {    Utility.serverURL = serverURL; }可能的原因是什么，如何解决它？

问Checkstyle:如何解决"Hidden Field“错误
EN

回答 6

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回答 6

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问Checkstyle:如何解决"Hidden Field“错误
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