Tsung函数(dynvars) -转义引号

Question

对Tsung和Erlan来说是新手，并且遇到了一个我一直无法找到答案的问题。我在一个Tsung dynvars Erlang函数中使用erlang-mysql-driver，我似乎在使用转义引号时遇到了问题。

我想做这样的事情：

      <setdynvars sourcetype="eval"
              code='fun({Pid,DynVars})->
                  mysql:start_link(p1, "localhost", "user", "pass", "db"), 
                  Result = mysql:fetch(p1, "SELECT * FROM consumers WHERE first_name=\'Doonley\'") end.'>
      <var name="myres" />
    </setdynvars>

但我得到一个空格错误：

Douglas-Sparlings-MacBook-Pro:.tsung dsparling$ tsung start
Starting Tsung
"Log directory is: /Users/dsparling/.tsung/log/20091110-16:35"
3284- fatal: {whitespace_required_between_attributes}
["Config Error, aborting ! ",{fatal,{{whitespace_required_between_attributes},{file,"/Users/dsparling/.tsung/tsung.xml"},{line,72},{col,221}}}]

我实际上需要为select使用一个变量，但我不确定其语法。下面是我要找的东西：

      <setdynvars sourcetype="eval"
              code='fun({Pid,DynVars})->
                  Val='Doonley",
                  mysql:start_link(p1, "localhost", "user", "pass", "db"), 
                  Result = mysql:fetch(p1, "SELECT * FROM consumers WHERE first_name=?", Val) end.'>
      <var name="myres" />
    </setdynvars>

Answer 1

尝试将单引号转义为'。例如：

  <setdynvars sourcetype="eval"
          code='fun({Pid,DynVars})->
              mysql:start_link(p1, "localhost", "user", "pass", "db"), 
              Result = mysql:fetch(p1, "SELECT * FROM consumers WHERE first_name=&apos;Doonley&apos;") end.'>
  <var name="myres" />
</setdynvars>