編寫登入 註冊等功能的時候後臺經行校驗,可以使用oval框架,簡單實用

package com.meadin.main.request;


import com.meadin.module.base.BaseRequest;


import net.sf.oval.constraint.Length;
import net.sf.oval.constraint.NotEmpty;
import net.sf.oval.constraint.NotNull;


public class VisitorRequest extends BaseRequest {
@NotNull
@NotEmpty
private String contacts;
@NotNull
@NotEmpty
@Length(min = 11, max = 11)//電話號碼長度的驗證
private String phone;
@NotNull
@NotEmpty
private String company;
@NotNull
@NotEmpty
private String duty;
@NotNull
@NotEmpty
private long systemCode;
@NotNull
@NotEmpty

@Length( max = 100)
private String remak;


public String getContacts() {
return contacts;
}


public void setContacts(String contacts) {
this.contacts = contacts == null ? null : contacts.trim();
}


public String getPhone() {
return phone;
}


public void setPhone(String phone) {
this.phone = phone == null ? null : phone.trim();
}


public String getCompany() {
return company;
}


public void setCompany(String company) {
this.company = company == null ? null : company.trim();
}


public String getDuty() {
return duty;
}


public void setDuty(String duty) {
this.duty = duty == null ? null : duty.trim();
}


public long getSystemCode() {
return systemCode;
}


public void setSystemCode(long systemCode) {
this.systemCode = systemCode;
}


public String getRemak() {
return remak;
}


public void setRemak(String remak) {
this.remak = remak == null ? null : remak.trim();
}


}

校驗的程式碼

@RequestMapping(value = "/")
@ResponseBody
public Object submit(VisitorRequest visitor, String callback) throws Exception {
// 對傳入的物件經行驗證
Validator validator = new Validator();
List<ConstraintViolation> list = validator.validate(visitor);

//只要返回集合中有元素就說明有不合法的引數
if (list.size() > 0) {
String result = callback + "(" + JSONObject.toJSON(ApiResult.build(0, "引數錯誤!!!")).toString() + ");";
return result;
}

}