源代码和数据库皆上传。此项目为SSH框架的服务器端与Android的客户端通过Json进行数据交互，适合新手，简单易学

// 引入相应的包 //json-lib-2.2-jdk15.jar import net.sf.json.JSONArray; import net.sf.json.JSONObject; 1. //把java 对象列表转换为json对象数组，并转为字符串 JSONArray array = JSONArray.fromObject(userlist); String jsonstr = array.toString(); 2.//把java对象转换成json对象，并转化为字符串 JSONObject object = JSONObject.fromObject(invite); Log4jInit.ysulogger.debug(object.toString()); 3.//把JSON字符串转换为JAVA 对象数组 String personstr = getRequest().getParameter("persons"); JSONArray json = JSONArray.fromObject(personstr); List<InvoidPerson> persons = (List<InvoidPerson>)JSONArray.toCollection(json, nvoidPerson.class); 4.//把JSON字符串转换为JAVA 对象 str = "{\"lendperson\":\"李四\",\"lendcompany\":\"有限公司\",\"checkperson\":\"李四\", \"lenddate\":\"2010-07-19T00:00:00\",\"lendcounts\":4,\" passports\":[{\"passportid\":\"d\",\"name\":\"李豫川\",\"passporttype\":\"K\"}, {\"passportid\":\"K9051\",\"name\":\"李平\",\"passporttype\":\"K\"}, {\"passportid\":\"K90517\",\"name\":\"袁寒梅\",\"passporttype\":\"K\"}, {\"passportid\":\"K905199\",\"name\":\"贺明\",\"passporttype\":\"K\"}]}"; JSONObject jsonobject = JSONObject.fromObject(str); PassportLendsEntity passportlends = null; try { //获取一个json数组 JSONArray array = jsonobject.getJSONArray("passports"); //将json数组 转换成 List<PassPortForLendsEntity>泛型 List<PassPortForLendsEntity> list = new ArrayList<PassPortForLendsEntity>(); for (int i = 0; i < array.size(); i++) { JSONObject object = (JSONObject)array.get(i); PassPortForLendsEntity passport = (PassPortForLendsEntity)JSONObject.toBean(object, PassPortForLendsEntity.class); if(passport != null){ list.add(passport); } } //转换PassportLendsEntity 实体类 passportlends = (PassportLendsEntity)JSONObject.toBean(jsonobject, PassportLendsEntity.class);