update getstatic command doc

core/src/main/java/com/taobao/arthas/core/command/klass100/GetStaticCommand.java

@@ -40,7 +40,8 @@ import static com.taobao.text.ui.Element.label;
 
 @Name("getstatic")
 @Summary("Show the static field of a class")
-@Description(Constants.EXAMPLE + "  getstatic -c 39eb305e org.apache.log4j.LogManager DEFAULT_CONFIGURATION_FILE\n"
+@Description(Constants.EXAMPLE + "  getstatic getstatic demo.MathGame random\n"
+                + "  getstatic -c 39eb305e org.apache.log4j.LogManager DEFAULT_CONFIGURATION_FILE\n"
              + Constants.WIKI + Constants.WIKI_HOME + "getstatic")
 public class GetStaticCommand extends AnnotatedCommand {
 

site/src/site/sphinx/en/getstatic.md

@@ -1,9 +1,38 @@
 getstatic
 =========
 
+* It is recommended to use the [OGNL] (ognl.md) command, which will be more flexibility.
+
 Check the static fields of classes conveniently, the usage is `getstatic class_name field_name`.
 
-Tip: if the static field is a complex class, you can even use [`OGNL`](https://en.wikipedia.org/wiki/OGNL) to traverse, filter and access the inner properties of this class.
+```bash
+$ getstatic demo.MathGame random
+field: random
+@Random[
+    serialVersionUID=@Long[3905348978240129619],
+    seed=@AtomicLong[120955813885284],
+    multiplier=@Long[25214903917],
+    addend=@Long[11],
+    mask=@Long[281474976710655],
+    DOUBLE_UNIT=@Double[1.1102230246251565E-16],
+    BadBound=@String[bound must be positive],
+    BadRange=@String[bound must be greater than origin],
+    BadSize=@String[size must be non-negative],
+    seedUniquifier=@AtomicLong[-3282039941672302964],
+    nextNextGaussian=@Double[0.0],
+    haveNextNextGaussian=@Boolean[false],
+    serialPersistentFields=@ObjectStreamField[][isEmpty=false;size=3],
+    unsafe=@Unsafe[sun.misc.Unsafe@2eaa1027],
+    seedOffset=@Long[24],
+]
+```
+
+
+Tip: if the static field is a complex class, you can even use [`OGNL`](https://commons.apache.org/proper/commons-ognl/language-guide.html) to traverse, filter and access the inner properties of this class.
+
+* [OGNL official guide](https://commons.apache.org/proper/commons-ognl/language-guide.html)
+* [Special usages](https://github.com/alibaba/arthas/issues/71)
+
 
 E.g. suppose `n` is a `Map` and its key is a `Enum`, then you can achieve this if you want to pick the key with a specific `Enum` value:
 

site/src/site/sphinx/en/watch.md

@@ -3,7 +3,7 @@ watch
 
 Monitor methods in data aspect including `return values`, `exceptions` and `parameters`.
 
-With the help of [OGNL](https://en.wikipedia.org/wiki/OGNL), you can easily check the details of variables when methods being invoked.
+With the help of [OGNL](https://commons.apache.org/proper/commons-ognl/index.html), you can easily check the details of variables when methods being invoked.
 
 ### Parameters & Options
 

site/src/site/sphinx/getstatic.md

@@ -1,11 +1,39 @@
 getstatic
 ===
 
+* 推荐直接使用[ognl](ognl.md)命令，更加灵活。
+
 通过getstatic命令可以方便的查看类的静态属性。使用方法为`getstatic class_name field_name`
 
 
+```bash
+$ getstatic demo.MathGame random
+field: random
+@Random[
+    serialVersionUID=@Long[3905348978240129619],
+    seed=@AtomicLong[120955813885284],
+    multiplier=@Long[25214903917],
+    addend=@Long[11],
+    mask=@Long[281474976710655],
+    DOUBLE_UNIT=@Double[1.1102230246251565E-16],
+    BadBound=@String[bound must be positive],
+    BadRange=@String[bound must be greater than origin],
+    BadSize=@String[size must be non-negative],
+    seedUniquifier=@AtomicLong[-3282039941672302964],
+    nextNextGaussian=@Double[0.0],
+    haveNextNextGaussian=@Boolean[false],
+    serialPersistentFields=@ObjectStreamField[][isEmpty=false;size=3],
+    unsafe=@Unsafe[sun.misc.Unsafe@2eaa1027],
+    seedOffset=@Long[24],
+]
+```
+
 如果该静态属性是一个复杂对象，还可以支持在该属性上通过ognl表示进行遍历，过滤，访问对象的内部属性等操作。
 
+* OGNL特殊用法请参考：[https://github.com/alibaba/arthas/issues/71](https://github.com/alibaba/arthas/issues/71)
+* OGNL表达式官方指南：[https://commons.apache.org/proper/commons-ognl/language-guide.html](https://commons.apache.org/proper/commons-ognl/language-guide.html)
+
+
 例如，假设n是一个Map，Map的Key是一个Enum，我们想过滤出Map中Key为某个Enum的值，可以写如下命令
 
 ```