Xu Yuyuan, 47, burst into a classroom in the city of Taixing last month and stabbed children and adults with a large knife, leaving four victims badly injured.
"Xu Yuyuan was executed this morning," an official at the higher people's court of Jiangsu province, who refused to be named, told AFP.
There have been five attacks on schools in China in less than two months, with 17 people -- including 15 children -- killed and more than 80 injured, according to previous Xinhua reports.
The attacks have shocked China, where violent crime remains relatively rare, and communities across the nation have taken emergency measures including beefing up school security forces and shutting down bars near schools.
Xu, who had been jobless for nine years, was sentenced to death on May 15 by a court in Taizhou city, which governs Taixing, after a half-day trial attended by 300 people.
According to a previous Xinhua report, Xu had told the court his motive was to vent his rage against society after losing money gambling and in business dealings, and suffering other setbacks in his personal life.
(English News Team)
