这是我从其他地方拿来改的代码
原来的结构是这样的 可以正常运行
(忽略报红,实际是可以正常运行的)
但是我模仿原来的,写了一个新的,ProblemToSolve 。
结果现在原来本身是可以运行的,比如manager都有错误了
错误如下
以下是我模仿添加的代码
ProblemToSolve.java
package org.electric.model;
import com.baomidou.mybatisplus.annotation.TableField;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.ToString;
import org.springframework.web.multipart.MultipartFile;
/**
* 待解决的问题
*/
@Data @AllArgsConstructor @NoArgsConstructor @ToString
public class ProblemToSolve {
private String id;
private String problemOutline;
private String problemDescription;
private String otherInformation;
private String problemClassification;
private String problemState;
private String deadline;
private String presenter;
private String personInCharge;
@TableField(exist = false)
private MultipartFile file;
}
ProblemToSolveController.java
package org.electric.controller;
import cn.hutool.core.util.IdUtil;
import com.baomidou.mybatisplus.core.metadata.IPage;
import lombok.extern.log4j.Log4j2;
import org.electric.model.ProblemToSolve;
import org.electric.service.ProblemToSolveService;
import org.electric.utils.Result;
import org.electric.utils.UploadUtil;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Map;
@CrossOrigin(allowCredentials="true", allowedHeaders="*", methods={RequestMethod.GET,RequestMethod.POST}, origins="*")
@RestController
@Log4j2
public class ProblemToSolveController extends UploadUtil {
@Value("${spring.servlet.upload.drive.letter}")
private String driveLetter;
@Value("${spring.servlet.upload.base-path}")
private String uploadPath;
@Resource
private ProblemToSolveService problemToSolveService;
@GetMapping("/admin/problem_to_solve/list/{currentPage}/{pageSize}")
public Result<IPage<Map<String, String>>> listByPage(@PathVariable Integer currentPage, @PathVariable Integer pageSize, HttpServletRequest request){
IPage<Map<String, String>> result = problemToSolveService.listByPage(currentPage,pageSize,getParameters(request));
return new Result<>(200,result);
}
@PostMapping("/admin/problem_to_solve/save")
public Result<String> save(ProblemToSolve problemToSolve){
String id = IdUtil.simpleUUID();
problemToSolve.setId(id);
boolean result = problemToSolveService.save(problemToSolve);
return new Result<>(result?200:400,result?"添加成功!":"添加失败!");
}
@GetMapping("/admin/problem_to_solve/get/{id}")
public Result<ProblemToSolve> getById(@PathVariable String id){
ProblemToSolve problemToSolve = problemToSolveService.getById(id);
return new Result<>(200,problemToSolve);
}
@PostMapping("/admin/problem_to_solve/update")
public Result<String> update(ProblemToSolve problemToSolve, MultipartFile file){
if(null!=file&&(!file.isEmpty())){
//String head = fileUpload(file,"head",problemToSolve.getHead(),problemToSolve.getId());
//problemToSolve.setHead(head);
}
boolean result = problemToSolveService.updateById(problemToSolve);
return new Result<>(result?200:400,result?"修改成功!":"修改失败!");
}
@GetMapping("/admin/problem_to_solve/delete/{id}")
public Result<String> delete(@PathVariable String id){
boolean result = problemToSolveService.removeById(id);
return new Result<>(result?200:400,result?"删除成功!":"删除失败!");
}
private Map<String, String> getParameters(HttpServletRequest request){
Map<String, String> params = new HashMap<>();
Enumeration<String> paramNames = request.getParameterNames();
while (paramNames.hasMoreElements()) {
String paramName = paramNames.nextElement();
String[] paramValues = request.getParameterValues(paramName);
if (paramValues.length == 1) {
String paramValue = paramValues[0];
if (paramValue.length() != 0) {
params.put(paramName, paramValue);
}
}
}
return params;
}
}
ProblemToSolveMapper.java
package org.electric.mapper;
import com.baomidou.mybatisplus.core.conditions.Wrapper;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;
import org.electric.model.ProblemToSolve;
import java.util.List;
import java.util.Map;
@Mapper
public interface ProblemToSolveMapper extends BaseMapper<ProblemToSolve> {
Page<Map<String, String>> listByPage(IPage<Map<String, String>> page, @Param("ew") Wrapper<Map<String, String>> queryWrapper);
List<Map<String, String>> listAll();
List<Map<String,String>> export();
Integer getCount(@Param("ew")Wrapper<Map<String, String>> queryWrapper);
}
ProblemToSolveService
package org.electric.service;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.IService;
import org.electric.model.ProblemToSolve;
import java.util.List;
import java.util.Map;
public interface ProblemToSolveService extends IService<ProblemToSolve> {
IPage<Map<String, String>> listByPage(Integer currentPage, Integer pageSize, Map<String, String> params);
List<Map<String, String>> listAll();
List<Map<String,String>> export();
Integer getCount(Map<String, String> params);
}
ProblemToSolveServiceImpl
package org.electric.service.impl;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.electric.mapper.ProblemToSolveMapper;
import org.electric.model.ProblemToSolve;
import org.electric.service.ProblemToSolveService;
import org.springframework.stereotype.Service;
import javax.annotation.Resource;
import java.util.List;
import java.util.Map;
@Service
public class ProblemToSolveServiceImpl extends ServiceImpl<ProblemToSolveMapper, ProblemToSolve>
implements ProblemToSolveService {
@Resource
private ProblemToSolveMapper problemToSolveMapper;
@Override
public IPage<Map<String, String>> listByPage(Integer currentPage, Integer pageSize, Map<String, String> params) {
IPage<Map<String, String>> page = new Page<>(currentPage, pageSize);
QueryWrapper<Map<String, String>> wrapper = new QueryWrapper<>();
for(Map.Entry<String,String> entry : params.entrySet()){
wrapper.like(entry.getKey(),null==entry.getValue()?"":entry.getValue());
}
return problemToSolveMapper.listByPage(page, wrapper);
}
@Override
public List<Map<String, String>> listAll() {
return problemToSolveMapper.listAll();
}
@Override
public List<Map<String, String>> export() {
return null;
}
@Override
public Integer getCount(Map<String, String> params) {
QueryWrapper<Map<String, String>> wrapper = new QueryWrapper<>();
for(Map.Entry<String,String> entry : params.entrySet()){
wrapper.eq(entry.getKey(),null==entry.getValue()?"":entry.getValue());
}
return problemToSolveMapper.getCount(wrapper);
}
}
ProblemToSolveMapper.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="org.electric.mapper.ProblemToSolveMapper">
<select id="listByPage" resultMap="java.util.Map">
SELECT id,problem_outline,problem_description,problem_classification,problem_state,deadline,presenter,person_in_charge,other_information
FROM problem_to_solve
<where>
${ew.sqlSegment}
</where>
order by deadline DESC
</select>
<select id="listAll" resultType="java.util.Map">
SELECT * FROM problem_to_solve
order by deadline DESC
</select>
</mapper>
在我没有添加这些仿写代码之前,运行时完全正常的,但是添加了之后,原来可以正常使用的功能也无法使用了,报我开头的错,我看了一天还是没有头绪。请大lao们帮忙看看。