Java的JSON操作存储List到Redis

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使用jackson和json-lib都可以

<dependency>             <groupId>org.codehaus.jackson</groupId>            <artifactId>jackson-mapper-asl</artifactId>            <version>1.9.13</version>        </dependency><dependency>            <groupId>net.sf.json-lib</groupId>            <artifactId>json-lib</artifactId>            <version>2.4</version>            <classifier>jdk15</classifier>        </dependency>

写缓存

JSONArray jsonarray = JSONArray.fromObject(result);            String js = jsonarray.toString();            JedisUtil.setString(key, js);

读缓存方法一：

String value=JedisUtil.getString(key);        if (value != null) {            ObjectMapper mapper = new ObjectMapper();  //如果是List<string>            return mapper.readValue(value, List.class);//如果是List<Bean>            JavaType javaType = mapper.getTypeFactory().constructParametricType(List.class, User.class);List<User> lst =  (List<User>)mapper.readValue(value, javaType);

读缓存方法一：

String jsonString=...ObjectMapper mapper = new ObjectMapper();  List<User> beanList = mapper.readValue(jsonString, new TypeReference<List<User>>() {});

参考：Jackson 处理复杂类型(List,map)两种方法

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