【目標】實現表中多個欄位模糊搜尋。

【方法】ormlite like

方法 ：like(columnName,pattern)    使用%萬用字元來匹配，指定行資料，返回匹配到的結果
使用示範：mDao.queryBuilder().where().like("LastName", "A%").query(); 匹配A開頭的LastName
                  mDao.queryBuilder().where().like("LastName", “%s").query(); 匹配s結尾的LastName
                  mDao.queryBuilder().where().like("LastName", “%art%").query(); 匹配中間為art的LastName
對應SQL：SELECT * FROM `t_person` WHERE `LastName` LIKE 'A%'
 

【程式碼】查詢與“孫”相關的資料。

 Dao<Cashbook,Integer> cashDao=getCash();
            //.or().like("month","%"+keys+"%").or().like("money","%"+keys+"%").or().like("payer","%"+keys+"%").or().like("way","%"+keys+"%")
            List<Cashbook> mdatas= cashDao.queryBuilder().where().like("client", "%"+keys+"%").or().like("month","'%"+keys+"%'").or().like("money","'%"+keys+"%'").or().like("payer","'%"+keys+"%'").or().like("way","%"+keys+"%").query();
            for(Cashbook cashbook:mdatas){
                String isIncome;
                if(cashbook.getIncome()==0){
                    isIncome="支出";
                }else{
                    isIncome="收入";
                }
                codeList.add(new TableCashData(cashbook.getPayer(),cashbook.getPayee(),cashbook.getClient(),cashbook.getMonth(),cashbook.getMoney(),cashbook.getWay(),cashbook.getRemark(),isIncome,cashbook.getDate(),false));

            }
            initColumn();
 

【報錯】“no such column ：孫”，把關鍵字認作“列名”了，不知為何！（應該不是這麼拼的吧）

10-07 16:28:37.812 27355-27355/menu.bottombar.bottombar E/SQLiteLog: (1) no such column: 孫
10-07 16:28:37.826 27355-27355/menu.bottombar.bottombar W/System.err: java.sql.SQLException: Problems executing Android query: SELECT * FROM `tb_crashbook` WHERE ((((`client` LIKE '%孫%' OR `month` LIKE '%孫%' ) OR `money` LIKE '%孫%' ) OR `payer` LIKE ''%孫%'' ) OR `way` LIKE '%孫%' ) 
10-07 16:28:37.827 27355-27355/menu.bottombar.bottombar W/System.err:     at com.j256.ormlite.misc.SqlExceptionUtil.create(SqlExceptionUtil.java:22)
        at com.j256.ormlite.android.AndroidCompiledStatement.getCursor(AndroidCompiledStatement.java:184)
        at com.j256.ormlite.android.AndroidCompiledStatement.runQuery(AndroidCompiledStatement.java:65)
        at com.j256.ormlite.stmt.SelectIterator.<init>(SelectIterator.java:55)
        at com.j256.ormlite.stmt.StatementExecutor.buildIterator(StatementExecutor.java:247)
        at com.j256.ormlite.stmt.StatementExecutor.query(StatementExecutor.java:196)
        at com.j256.ormlite.dao.BaseDaoImpl.query(BaseDaoImpl.java:265)
        at com.j256.ormlite.stmt.QueryBuilder.query(QueryBuilder.java:361)
        at com.j256.ormlite.stmt.Where.query(Where.java:503)
        at menu.bottombar.bottombar.Activity.CashbookActivity$OrmLiteTest.searchKeys(CashbookActivity.java:318)
        at menu.bottombar.bottombar.Activity.CashbookActivity.searchKeywords(CashbookActivity.java:145)
        at menu.bottombar.bottombar.Activity.CashbookActivity.access$300(CashbookActivity.java:39)
        at menu.bottombar.bottombar.Activity.CashbookActivity$3$1.onClick(CashbookActivity.java:122)
        at com.android.internal.app.AlertController$ButtonHandler.handleMessage(AlertController.java:176)
        at android.os.Handler.dispatchMessage(Handler.java:102)
 

【解決辦法】

仔細觀察報錯語句：SELECT * FROM `tb_crashbook` WHERE ((((`client` LIKE '%孫%' OR `month` LIKE '%孫%' ) OR `money` LIKE '%孫%' ) OR `payer` LIKE ''%孫%'' ) OR `way` LIKE '%孫%' ) ，出現了兩個“  ' ”符號，手動去掉語句首尾的即可，未弄清原因。

List<Cashbook> mdatas= cashDao.queryBuilder().where().like("client", "%"+keys+"%").or().like("month","'%"+keys+"%'").or().like("money","'%"+keys+"%'").or().like("payer","%"+keys+"%").query();

還請各位指點！