1、存储对象到List
@Test
public void testSaveObjects() {
List<TbPoem> tbPoems = tbPoemMapper.selectList(
new QueryWrapper<TbPoem>().lambda().eq(TbPoem::getFlag, 1)
);
// 把对象转为json并存储
try {
ObjectMapper mapper = new ObjectMapper();
for (TbPoem tbPoem : tbPoems) {
String value = mapper.writeValueAsString(tbPoem);
stringRedisTemplate.opsForList().leftPush("tbpoem", value);
}
} catch (JsonProcessingException e) {
e.printStackTrace();
}
}
2、遍历List并转为对象
1)、方法一
@Test
public void testSelectObjects() throws JsonProcessingException {
Long size = stringRedisTemplate.opsForList().size("tbpoem");
ObjectMapper mapper = new ObjectMapper();
for (int i = 0; i < size; i++) {
String tbpoem = stringRedisTemplate.opsForList().index("tbpoem", i);
TbPoem tbPoem = mapper.readValue(tbpoem, TbPoem.class);
System.out.println(tbPoem);
}
}
2)、方法二
@Test
public void testSelectObjects() throws JsonProcessingException {
Long size = stringRedisTemplate.opsForList().size("tbpoem");
ObjectMapper mapper = new ObjectMapper();
List<String> tbpoem = stringRedisTemplate.opsForList().range("tbpoem", 0, -1);
for (String s : tbpoem) {
TbPoem tbPoem = mapper.readValue( s, TbPoem.class);
System.out.println(tbPoem);
}
}