arthas-watch

all

Method invoke data observation. See also: `arthas`, `arthas-trace`.

Examples (3)

Observe the first parameter and return value of method, and expand the nested attributes of the object to 4 levels

watch class-pattern method-pattern '{ params[0],returnObj }' -x 4

When the value of the first parameter of the method is 5, the second parameter and return value are output, and the object is expanded 4 layers

watch class-pattern method-pattern '{ params[1],returnObj }' '"5".equals(params[0])' -x 4

When the method returns or an exception occurs, observe the count property of the second parameter

watch class-pattern method-pattern '{ params[1].count }' -e -s