JAKARTA, Indonesia — The president of Indonesia, Joko Widodo, was sworn in for a second term on Sunday with little public fanfare as security forces were on high alert and protests were prohibited in a sign of mounting public frustration with his governmen t.

In his inaugural speech to Parliament, Mr. Joko, a former furniture manufacturer and Jakarta governor, presented a pro-business program of bolstering industry, building infrastructure and reducing regulations and bureaucracy.

He said nothing about critical issues that have surfaced since his election victory in April, including a law to weaken the fight against corruption and legislation that would outlaw sex outside marriage and restrict free expression.

As he left the presidential palace for Parliament to take the oath of office, Mr. Joko told reporters that he had decided to keep the inauguration low key because it was merely a continuation of his presidency.