Environmental officials from China and Japan exchanged opinions at a high-level meeting on Wednesday and planned to deepen their cooperation and promote pollution control in China.
Fascism and militarism "must be held thoroughly accountable and eradicated" and Japan must educate its young people with "the right view of history", a Foreign Ministry official said on Tuesday.
Premier Li Keqiang urged Japan to view China's development as an opportunity and pursue positive policies toward China to improve bilateral relations.
Japanese government approved this year's version of defense white paper, which described the security environment surrounding the country "increasingly severe".
The Chinese Foreign Ministry on Tuesday urged Japan not to "hype up" the South China Sea issue.
China urged Japan to stick to the path of peaceful development and promote regional peace and stability on Wednesday.
China issued a stern "word of advice" to Japan on Wednesday not to be provocative or escalate the situation around China's Diaoyu Islands.
A summit between officials from the three countries will be held in Seoul on Sunday - the latest sign of thawing ties between Beijing and Tokyo.
China is likely to replace the United States as the world's largest consumer market, which by all means would be good news for the rest of the world.
Some 45,000 Japanese protestors rallied in front of the country's parliament building in downtown Tokyo late Monday against the government-backed security bills, trying to stop a possible passage of the controversial legislation in the Diet's upper house this week.
Abe is trying to sweeten the bills that are unpopular with much of the public by talking of "proactive pacifism".
More than half of voters in Japan are opposed to their government's plans to enact legislation that would allow Japanese troops to fight abroad for the first time since World War II.