MapReduce 根據id 匹配user和order數據

user數據:java u001,senge,18,angelababy u002,laozhao,48,ruhua u003,xiaoxu,16,chunge u004,laoyang,28,zengge u005,nana,14,huangbo order訂單數據:web order001,u001 order002,u001 order003,u005 order004,u002 order
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