The requirements are as follows, the token is generated from the third step interface.
Through script
import org.apache.commons.codec.digest.DigestUtils;
//Import org.apache.commons.codec.digest.DigestUtils package;
< p> String sign = DigestUtils.sha1Hex ("${__time}${token}xxxxx").toUpperCase( );//Define sign=server time+token+fixed password xxxxx; then.toUpperCase( ) is sent in uppercase;
vars.put("sign", sign);?
//The exported signature is used in the fourth interface;
In the 4 cases, you can use ${sign} directly to encrypt using the sign in the previous step