Jackson 处理复杂类型(List,map)两种方法

http://blog.csdn.net/zhuyijian135757/article/details/38269715

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方法一:

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String jsonString="[{'id':'1'},{'id':'2'}]";

ObjectMapper mapper = new ObjectMapper();

JavaType javaType = mapper.getTypeFactory().constructParametricType(List.class, Bean.class);

//如果是Map类型 mapper.getTypeFactory().constructParametricType(HashMap.class,String.class, Bean.class);

List<Bean> lst = (List<Bean>)mapper.readValue(jsonString, javaType);

方法二:

[java] view plain copy

String jsonString="[{'id':'1'},{'id':'2'}]";

ObjectMapper mapper = new ObjectMapper();

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