ObjectMapper objectMapper = new JavaPropsMapper(); String tomlString = "[database] host = \"localhost\" port = 3306"; DatabaseConfig databaseConfig = objectMapper.readValue(tomlString, DatabaseConfig.class); ObjectMapper objectMapper = new JavaPropsMapper(); DatabaseConfig databaseConfig = new DatabaseConfig("localhost", 3306); String tomlString = objectMapper.writeValueAsString(databaseConfig); <dependency> <groupId>com.fasterxml.jackson.dataformat</groupId> <artifactId>jackson-dataformat-toml</artifactId> <version>2.12.2</version> </dependency> ObjectMapper objectMapper = new JavaPropsMapper(Charset.forName("GBK"));