关于数据库查询new BeanPropertyRowMapper

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//bean类必须有无参构造,不然new BeanPropertyRowMapper< bean> (bean.class)不会把数据转为bean对象

@Test public voidtest3() throws PropertyVetoException { //List< bean> query = jdbcTemplate.query("select * from jiang", new BeanPropertyRowMapper< > (bean.class)); List< bean> query = jdbcTemplate.query("select * from jiang",new BeanPropertyRowMapper< bean> (bean.class)); System.out.println(query); }

package com.jiang; public class bean { private String username; private String password; public bean() { }public bean(String username, String password) { this.username = username; this.password = password; }public String getUsername() { return username; }public void setUsername(String username) { this.username = username; }public String getPassword() { return password; }public void setPassword(String password) { this.password = password; }@Override public String toString() { return "bean{" + "username=‘" + username + ‘‘‘ + ", password=‘" + password + ‘‘‘ + ‘}‘; } }

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