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27 lines
880 B
Plaintext
27 lines
880 B
Plaintext
@Permission("MySQL")
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contract MySQLExample{
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@Description("连接MySQL，参数示例: {\"url\":"39.106.6.6:3306\",\"userName\":\"haiou\",\"pwd\":\"haiou\"}")
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export function connectDBAndQuery(args){
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args = JSON.parse(args);
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var conn = MySQLUtil.getConnection(args.url,args.userName,args.pwd);
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if (conn!=undefined && !conn.isClosed()){
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print("successfully connected");
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}
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else return "connect failed";
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var sql = "select * from haiou.catering limit 0,10";
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var statement = conn.createStatement();
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var resultSet = statement.executeQuery(sql);
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ret = [];
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var meta = resultSet.getMetaData();
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for (;resultSet.next();){
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var line = {
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};
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for (var j=1;j<=meta.getColumnCount();j++){
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line[meta.getColumnName(j)] = resultSet.getString(j);
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}
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ret.push(line);
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}
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return JSON.stringify(ret);
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}
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}
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