What are the visa & residency requirements in Shanghai?

"In order to visit Shanghai, travelers must obtain a visa prior to their arrival. The process of applying for a visa involves submitting an application form, a valid passport, a passport-sized photograph, and other documents that may be required by the Chinese Embassy or Consulate. Depending on the type of visa, additional documents may be required. In order to obtain residency in Shanghai, China, applicants must first obtain a residence permit. The process of applying for a residence permit involves submitting an application form, a valid passport, a passport-sized photograph, and other documents that may be required by the Chinese Embassy or Consulate. Depending on the type of residence permit, additional documents may be required. Once the application is approved, the applicant will receive a residence permit card, which must be renewed every year," remarked another expat in Shanghai, China.