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js implements a province and city three-level linkage selection box code sharing_javascript skills
WBOYOriginal
2016-05-16 17:41:011445browse
Operation effect:
======================================== =========== Part of the code: ================================ =================== Of course you must have this table in your database first, otherwise you will have no data...^_^
/** * Load city data * */ public void loadCity() { if (q == null || q.trim().equals("")) { write("noId"); } else { List citys = xzqhService.queryCitys(q.trim()); if (citys == null || citys.size() < 1) { write("null"); } else { StringBuilder builder = new StringBuilder("["); for (Xzqh city : citys) { builder.append("{'id':'"); builder.append(city.getCityId()); builder.append("','name':'"); builder.append(city.getCity()); builder.append("'},"); } if (builder.length() > 1) builder.replace(builder.length() - 1, builder.length(), "]"); write(builder.toString()); } } } /** * Load area data * */ public void loadRegion() { if (q == null || q.trim().equals("")) { write("noId"); } else { List citys = xzqhService.queryDistricts(q.trim()); if (citys == null || citys.size() < 1) { write("null"); } else { StringBuilder builder = new StringBuilder("["); for (Xzqh district : citys) { builder.append("{'id':'"); builder.append(district.getRegionId()); builder.append("','name':'"); builder.append(district.getRegion()); builder.append("'},"); } if (builder.length() > 1) builder.replace(builder.length() - 1, builder.length(), "]"); write(builder.toString()); } } }
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