Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance.
Project price only 1 $
You can buy this project and download/modify it how often you want.
com.hframework.common.util.ExampleUtils Maven / Gradle / Ivy
package com.hframework.common.util;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.*;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* Created by zhangqh6 on 2015/10/18.
*/
public class ExampleUtils {
private static final Map signKeyWordMap = new HashMap();
/*
EQU - 等于:equal
NEQ - 不等于:not equal
LSS - 小于:less than
LEQ - 小于或等于:equal or less than
GTR - 大于:greater than
GEQ - 大于或等于:equal or greater than
*/
static {
signKeyWordMap.put("N","IsNull");
signKeyWordMap.put("NN","IsNotNull");
signKeyWordMap.put("=","EqualTo");
signKeyWordMap.put("!=","NotEqualTo");
signKeyWordMap.put(">","GreaterThan");
signKeyWordMap.put("<","LessThan");
signKeyWordMap.put(">=","GreaterThanOrEqualTo");
signKeyWordMap.put("<=","LessThanOrEqualTo");
signKeyWordMap.put("IN","In");
signKeyWordMap.put("NIN","NotIn");
signKeyWordMap.put("BT","Between");
signKeyWordMap.put("NBT","NotBetween");
}
/**
* 将一个业务对象转换为Example查询对象
* @param srcObj
* @return
* @throws InvocationTargetException
* @throws IllegalAccessException
*/
public static T parseExample(Object srcObj,Class exampleClass) throws InvocationTargetException,
IllegalAccessException, InstantiationException, NoSuchMethodException {
return (T) parseExample(srcObj,exampleClass.newInstance());
}
public static T clone(Object example) throws IllegalAccessException, InstantiationException, InvocationTargetException {
Class exampleClass = example.getClass();
Object newExample = exampleClass.newInstance();
ReflectUtils.setFieldValue(newExample,"distinct",ReflectUtils.getFieldValue(example, "distinct"));
ReflectUtils.setFieldValue(newExample, "limitEnd", ReflectUtils.getFieldValue(example, "limitEnd"));
ReflectUtils.setFieldValue(newExample, "limitStart", ReflectUtils.getFieldValue(example, "limitStart"));
ReflectUtils.setFieldValue(newExample, "orderByClause", ReflectUtils.getFieldValue(example, "orderByClause"));
List oredCriteria = (List) ReflectUtils.getFieldValue(example, "oredCriteria");
if(oredCriteria != null) {
for (Object criteria : oredCriteria) {
Object newCriteria = ReflectUtils.invokeMethod(newExample, "createCriteria", new Class[]{}, new Object[]{});
List newCriterions = new ArrayList();
List allCriteria = (List) ReflectUtils.invokeMethod(criteria, "getAllCriteria", new Class[]{}, new Object[]{});
for (Object criterion : allCriteria) {
newCriterions.add(criterion);
}
ReflectUtils.setFieldValue(newCriteria, "criteria", newCriterions);
}
}
return (T) newExample;
}
/**
* 将一个业务对象转换为Example查询对象
* @param srcObj
* @param exampleObj
* @return
* @throws InvocationTargetException
* @throws IllegalAccessException
*/
public static Object parseExample(Object srcObj,Object exampleObj) throws InvocationTargetException, IllegalAccessException, NoSuchMethodException {
List oredCriteria = (List) ReflectUtils.getFieldValue(exampleObj, "oredCriteria");
Object criteriaObj = null;
if(oredCriteria != null && oredCriteria.size() > 0) {
criteriaObj = oredCriteria.get(0);
}else {
Method criteriaMethod = exampleObj.getClass().getMethod("createCriteria");
criteriaObj = criteriaMethod.invoke(exampleObj);
}
// 方法名称及方法
Map criteriaMethods = BeanUtils.getMethods(criteriaObj.getClass());
Map convertMap = BeanUtils.convertMap(srcObj, false);
if(convertMap != null && !convertMap.isEmpty()) {
for (String filed : convertMap.keySet()) {
StringBuffer sb = new StringBuffer("and");
sb.append(StringUtils.upperCaseFirstChar(filed));
sb.append("EqualTo");
// 获取对应方法
Method method = criteriaMethods.get(sb.toString());
String value = convertMap.get(filed);
if (method != null && value != null && !"".equals(value)) {
if(method.getParameterTypes()[0] == Long.class) {
// 对exampleObj对象直接赋值
method.invoke(criteriaObj, new Object[]{Long.valueOf(value)});
}else if(method.getParameterTypes()[0] == Integer.class) {
// 对exampleObj对象直接赋值
method.invoke(criteriaObj, new Object[]{Integer.valueOf(value)});
}else if(method.getParameterTypes()[0] == Double.class) {
// 对exampleObj对象直接赋值
method.invoke(criteriaObj, new Object[]{Double.valueOf(value)});
}else {
// 对exampleObj对象直接赋值
method.invoke(criteriaObj, new Object[]{value});
}
}
}
}
return exampleObj;
}
/**
* 将参数字符串转换为MAP对象
* @param params
* @return
* @throws InvocationTargetException
* @throws IllegalAccessException
*/
public static Map> parseParams2Map(String params) throws InvocationTargetException, IllegalAccessException{
Map> convertMap = new HashMap>();
String[] splits = StringUtils.split(params, "&");
if(splits !=null && splits.length > 0) {
for (String split : splits) {
Pattern pattern = Pattern.compile("(>=|<=|>|<|!=|=|NIN|IN|NN|N)");
Matcher matches = pattern.matcher(split);
if(matches.find()){
String sign = matches.group();
if(!convertMap.containsKey(sign)) {
convertMap.put(sign,new ArrayList());
}
convertMap.get(sign).add(new String[]{
split.substring(0, split.indexOf(sign)).trim(),
split.substring(split.indexOf(sign) + sign.length()).trim()});
}
}
}
return convertMap;
}
/**
* 将参数MAP转换为Example查询对象
* @param map
* @param exampleObj
* @return
* @throws InvocationTargetException
* @throws IllegalAccessException
*/
public static Object parseExample(Map> map,Object exampleObj) throws InvocationTargetException, IllegalAccessException, NoSuchMethodException {
Method criteriaMethod = exampleObj.getClass().getMethod("or");
Object criteriaObj = criteriaMethod.invoke(exampleObj);
// 方法名称及方法
Map criteriaMethods = BeanUtils.getMethods(criteriaObj.getClass());
if (map != null && !map.isEmpty()) {
for (String sign : map.keySet()) {
List conditions = map.get(sign);
for (String[] condition : conditions) {
String filed = condition[0];
String value = condition[1];
String methodName = calcExampleMethodName(sign, filed, value);
// 获取对应方法
Method method = criteriaMethods.get(methodName);
if (method != null) {
if(method.getParameterTypes()[0] == Long.class) {
// 对exampleObj对象直接赋值
method.invoke(criteriaObj, new Object[]{Long.valueOf(value)});
}else if(method.getParameterTypes()[0] == Integer.class) {
// 对exampleObj对象直接赋值
method.invoke(criteriaObj, new Object[]{Integer.valueOf(value)});
}else if(method.getParameterTypes()[0] == Double.class) {
// 对exampleObj对象直接赋值
method.invoke(criteriaObj, new Object[]{Double.valueOf(value)});
}else {
// 对exampleObj对象直接赋值
method.invoke(criteriaObj, new Object[]{value});
}
}
}
}
}
return exampleObj;
}
/**
* 将查询参数转换为Example查询对象
* @param params
* @param exampleObj
* @return
* @throws InvocationTargetException
* @throws IllegalAccessException
*/
public static Object parseExample(String params,Object exampleObj) throws InvocationTargetException, IllegalAccessException, NoSuchMethodException {
Map> convertMap = parseParams2Map(params);
return parseExample(convertMap,exampleObj);
}
private static String calcExampleMethodName(String sign, String filed, String value) {
StringBuffer sb = new StringBuffer("and");
sb.append(StringUtils.upperCaseFirstChar(filed));
sb.append(signKeyWordMap.get(sign));
return sb.toString();
}
/*
public Criteria andHfpmProgramIdIsNull() {
addCriterion("hfpm_program_id is null");
return (Criteria) this;
}
public Criteria andHfpmProgramIdIsNotNull() {
addCriterion("hfpm_program_id is not null");
return (Criteria) this;
}
public Criteria andHfpmProgramIdEqualTo(Long value) {
addCriterion("hfpm_program_id =", value, "hfpmProgramId");
return (Criteria) this;
}
public Criteria andHfpmProgramIdNotEqualTo(Long value) {
addCriterion("hfpm_program_id <>", value, "hfpmProgramId");
return (Criteria) this;
}
public Criteria andHfpmProgramIdGreaterThan(Long value) {
addCriterion("hfpm_program_id >", value, "hfpmProgramId");
return (Criteria) this;
}
public Criteria andHfpmProgramIdGreaterThanOrEqualTo(Long value) {
addCriterion("hfpm_program_id >=", value, "hfpmProgramId");
return (Criteria) this;
}
public Criteria andHfpmProgramIdLessThan(Long value) {
addCriterion("hfpm_program_id <", value, "hfpmProgramId");
return (Criteria) this;
}
public Criteria andHfpmProgramIdLessThanOrEqualTo(Long value) {
addCriterion("hfpm_program_id <=", value, "hfpmProgramId");
return (Criteria) this;
}
public Criteria andHfpmProgramIdIn(List values) {
addCriterion("hfpm_program_id in", values, "hfpmProgramId");
return (Criteria) this;
}
public Criteria andHfpmProgramIdNotIn(List values) {
addCriterion("hfpm_program_id not in", values, "hfpmProgramId");
return (Criteria) this;
}
public Criteria andHfpmProgramIdBetween(Long value1, Long value2) {
addCriterion("hfpm_program_id between", value1, value2, "hfpmProgramId");
return (Criteria) this;
}
public Criteria andHfpmProgramIdNotBetween(Long value1, Long value2) {
addCriterion("hfpm_program_id not between", value1, value2, "hfpmProgramId");
return (Criteria) this;
}
*/
}
