He last visited Japan in August 2016 for a trilateral meeting with his South Korean and Japanese counterparts. China's bid to fix relations comes as the USA threatens trade sanctions and a renewed emphasis on Taiwan ties.
President Trump and Japanese Prime Minster Shinzo Abe will take part in a summit at Mar-a-Lago next week.
In a background briefing on Abe's visit Friday, the official, who asked not to be named, said the meetings at Trump's personal resort Mar-a-Lago in Florida would start in the afternoon on April 17 with a one-on-one meeting, followed by a small-group discussion that will include some of their top national security officials.
Despite the diplomatic push, tensions over territory and Japan's militarist history remain. The Self-Defense Forces activated a new amphibious unit to help defend remote islands just a week ago. Still, few see the relationship as good.
Japan hopes the summit will prompt a trip by Abe to China, and in turn, a visit to Japan by Xi.
Japanese Foreign Affairs Minister Taro Kono and his Chinese counterpart kicked off the first high-level economic talks between their nations in eight years on Monday, at a time of tense trade relations with the United States for both countries.
Trump threw fresh confusion into trade negotiations Thursday by instructing advisers to review the possibility of returning to the negotiations on the Trans-Pacific Partnership, a sprawling free trade deal.
Wang said any parties, including Japan, welcome the recent important changes on the peninsula.
"For the Abe administration, China is essential to effectively pressuring North Korea", said Madoka Fukuda, a professor of global politics at Hosei University in Tokyo.
According to a government survey conducted in 2017, only 2.8% of rape victims said they spoke to the police, while 58.9% did not tell anyone, not even friends or relatives. members of their family. "So they can use ties with Japan as a form of insurance".