What is the legend about the origin of Zhan Lujian, one of the top ten Excalibur? Whose sword is this?

King Zhao and Chu lie in the palace. When he woke up, he saw a electro luminescent beside his pillow. He looked and took a sword. Dan, on the other hand, told Feng Hu to enter the palace with his sword. Wind beard looked at the sword and said, "How did the king get this?" Zhao Haoqi said, "I sleep on my pillow. I wonder what the name of this sword is? " "This sword, named Zhan Lu, was cast by Ou Yezi, a swordsman in Wuzhong. Once upon a time, the King of Yue cast five famous swords, which was a dream of Wu Wangshou. The King of Yue presented a third one, saying it was "Fish Intestine", "Pan Ying" and "Zhan Lu". Fish intestines were used to stab Liao Wang, and Pan Ying was used to send away the dead woman, but Zhan Lu's sword was inside. It is said that this sword is the beauty of hardware, the essence of the sun, and it will be powerful as soon as it comes out. However, if you do something irrational, your sword will come out. The country where this sword is located will be far-reaching and prosperous. Today, the prince of Wu stands on his own feet and kills ten thousand people to bury his daughter. Wu people don't complain, so the sword of "Zhan Lu" has no way to go, but there is a way! "Wang Zhao joy, that is, put on its body, think treasure, announce its people, think Tian Rui. (Excerpted from History of Eastern Zhou Dynasty)